{"id":103892,"date":"2026-09-11T14:09:01","date_gmt":"2026-09-11T06:09:01","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/103892.html"},"modified":"2026-09-11T14:09:01","modified_gmt":"2026-09-11T06:09:01","slug":"day-14%ef%bc%9ajava%e7%b1%bb%e4%b8%8e%e5%af%b9%e8%b1%a1-%c2%b7-%e5%b1%9e%e6%80%a7-%c2%b7-%e8%a1%8c%e4%b8%ba-%c2%b7-%e5%88%9b%e5%bb%ba%e5%af%b9%e8%b1%a1-%c2%b7-%e5%af%b9%e8%b1%a1%e8%b0%83%e7%94%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/103892.html","title":{"rendered":"Day 14\uff1aJava\u7c7b\u4e0e\u5bf9\u8c61 \u00b7 \u5c5e\u6027 \u00b7 \u884c\u4e3a \u00b7 \u521b\u5efa\u5bf9\u8c61 \u00b7 \u5bf9\u8c61\u8c03\u7528"},"content":{"rendered":"

\u76ee\u5f55<\/p>\n

\n

\u7b2c\u4e00\u90e8\u5206：Day 13 \u7ec3\u4e60\u7b54\u6848<\/p>\n

\u7ec3\u4e601：\u7ed9 ATM \u589e\u52a0\u201c\u4fee\u6539\u5bc6\u7801\u201d\u529f\u80fd（\u83dc\u5355\u7b2c6\u9879）<\/p>\n

\u7ec3\u4e602：\u53d6\u6b3e\u65f6\u589e\u52a0\u9650\u5236：\u5355\u6b21\u6700\u591a\u53d6 5000<\/p>\n

\u7ec3\u4e603：\u7528\u6570\u7ec4\u8bb0\u5f55\u6700\u8fd1 5 \u7b14\u64cd\u4f5c\u91d1\u989d（\u5b58\u6b3e\u6b63\u3001\u53d6\u6b3e\u8d1f），\u5e76\u63d0\u4f9b\u201c\u6253\u5370\u6d41\u6c34\u201d<\/p>\n

\u7ec3\u4e604：\u767b\u5f55\u6210\u529f\u540e\u663e\u793a\u9690\u85cf\u8d26\u53f7（1001\u21921**1），\u5e76\u7edf\u8ba1\u767b\u5f55\u5931\u8d25\u603b\u6b21\u6570<\/p>\n

\u7b2c\u4e8c\u90e8\u5206：Day 14 \u8be6\u7ec6\u6559\u7a0b<\/p>\n

\u4eca\u65e5\u76ee\u6807<\/p>\n

\u4e00\u3001\u5148\u5efa\u7acb\u6982\u5ff5（\u4e00\u770b\u5c31\u61c2）<\/p>\n

\u4e8c\u3001\u4e3a\u4ec0\u4e48\u8981\u4ece\u6570\u7ec4\u5347\u7ea7\u5230\u5bf9\u8c61？<\/p>\n

\u4e09\u3001\u6700\u5c0f\u4f8b\u5b50：\u5b9a\u4e49\u7c7b \u2192 \u521b\u5efa\u5bf9\u8c61 \u2192 \u8c03\u7528<\/p>\n

\u5b66\u4e60\u8def\u5f84<\/p>\n

\u56db\u3001\u9010\u9879\u7cbe\u8bb2<\/p>\n

1）\u5c5e\u6027\u5199\u5728\u54ea？<\/p>\n

2）\u884c\u4e3a\u600e\u4e48\u5199？<\/p>\n

3）new\u00a0\u505a\u4e86\u4ec0\u4e48？<\/p>\n

4）\u8c03\u7528\u56fa\u5b9a\u59ff\u52bf<\/p>\n

\u4e94\u3001static \u65b9\u6cd5 vs \u5bf9\u8c61\u65b9\u6cd5<\/p>\n

\u516d\u3001\u7efc\u5408\u6848\u4f8b：Account \u8d26\u6237\u7c7b（\u627f\u63a5 ATM）<\/p>\n

\u4e03\u3001\u5bf9\u8c61\u6570\u7ec4（\u4e3a\u7ba1\u7406\u7cfb\u7edf\u6253\u57fa\u7840）<\/p>\n

\u516b\u3001\u5efa\u8bae\u4f60\u8fd9\u6837\u7ec3<\/p>\n

\u4e5d\u3001\u8fd8\u6709\u6ca1\u6709\u522b\u7684\u5199\u6cd5？<\/p>\n

\u5341\u3001\u56fa\u5b9a\u5199\u6cd5<\/p>\n

\u4eca\u65e5\u5fc5\u4f1a<\/p>\n

\u7b2c\u4e09\u90e8\u5206：Day 14 \u8bfe\u540e\u7ec3\u4e60<\/p>\n<\/p>\n

\u7b2c\u4e00\u90e8\u5206：Day 13 \u7ec3\u4e60\u7b54\u6848<\/h2>\n
\n

\u7ec3\u4e601：\u7ed9 ATM \u589e\u52a0\u201c\u4fee\u6539\u5bc6\u7801\u201d\u529f\u80fd（\u83dc\u5355\u7b2c6\u9879）<\/h3>\n

import java.util.Scanner; \/\/ \u5bfc\u5165\u952e\u76d8\u8f93\u5165\u5de5\u5177<\/p>\n

public class Day13Ex1 { \/\/ \u516c\u5171\u7c7b，\u6587\u4ef6\u540d\u5fc5\u987b\u662fDay13Ex1.java
\n static String[] ids = {"1001", "1002"}; \/\/ \u8d26\u53f7\u6570\u7ec4
\n static String[] pwds = {"123456", "234567"}; \/\/ \u5bc6\u7801\u6570\u7ec4
\n static Scanner sc = new Scanner(System.in); \/\/ \u521b\u5efaScanner
\n static int currentIndex = 0; \/\/ \u6f14\u793a：\u5047\u8bbe\u5df2\u767b\u5f55\u7b2c0\u4e2a\u7528\u6237<\/p>\n

public static void main(String[] args) { \/\/ \u7a0b\u5e8f\u5165\u53e3
\n System.out.println("\u5f53\u524d\u53ef\u628a\u672c\u65b9\u6cd5\u63a5\u5230\u83dc\u5355 case 6"); \/\/ \u4f7f\u7528\u63d0\u793a
\n changePassword(); \/\/ \u8c03\u7528\u4fee\u6539\u5bc6\u7801
\n System.out.println("\u4fee\u6539\u540e\u5bc6\u7801：" + pwds[currentIndex]); \/\/ \u9a8c\u8bc1\u7ed3\u679c
\n }<\/p>\n

public static void changePassword() { \/\/ \u4fee\u6539\u5f53\u524d\u7528\u6237\u5bc6\u7801
\n System.out.print("\u8bf7\u8f93\u5165\u539f\u5bc6\u7801："); \/\/ \u63d0\u793a\u8f93\u5165\u539f\u5bc6\u7801
\n String oldPwd = sc.next(); \/\/ \u8bfb\u53d6\u539f\u5bc6\u7801
\n if (!pwds[currentIndex].equals(oldPwd)) { \/\/ \u539f\u5bc6\u7801\u4e0d\u5bf9
\n System.out.println("\u539f\u5bc6\u7801\u9519\u8bef"); \/\/ \u63d0\u793a\u9519\u8bef
\n return; \/\/ \u7ed3\u675f，\u4e0d\u4fee\u6539
\n }
\n System.out.print("\u8bf7\u8f93\u5165\u65b0\u5bc6\u7801："); \/\/ \u63d0\u793a\u65b0\u5bc6\u7801
\n String newPwd = sc.next(); \/\/ \u8bfb\u53d6\u65b0\u5bc6\u7801
\n System.out.print("\u8bf7\u786e\u8ba4\u65b0\u5bc6\u7801："); \/\/ \u63d0\u793a\u786e\u8ba4
\n String confirm = sc.next(); \/\/ \u8bfb\u53d6\u786e\u8ba4\u5bc6\u7801
\n if (!newPwd.equals(confirm)) { \/\/ \u4e24\u6b21\u4e0d\u4e00\u81f4
\n System.out.println("\u4e24\u6b21\u65b0\u5bc6\u7801\u4e0d\u4e00\u81f4"); \/\/ \u63d0\u793a
\n return; \/\/ \u7ed3\u675f，\u4e0d\u4fee\u6539
\n }
\n pwds[currentIndex] = newPwd; \/\/ \u5199\u56de\u5f53\u524d\u7528\u6237\u5bc6\u7801
\n System.out.println("\u5bc6\u7801\u4fee\u6539\u6210\u529f"); \/\/ \u6210\u529f\u63d0\u793a
\n }
\n}<\/p>\n

\/*
\n\u9884\u671f\u8f93\u51fa（\u539f\u5bc6\u7801123456，\u65b0\u5bc6\u7801111111\u5e76\u786e\u8ba4）：
\n\u5f53\u524d\u53ef\u628a\u672c\u65b9\u6cd5\u63a5\u5230\u83dc\u5355 case 6
\n\u8bf7\u8f93\u5165\u539f\u5bc6\u7801：123456
\n\u8bf7\u8f93\u5165\u65b0\u5bc6\u7801：111111
\n\u8bf7\u786e\u8ba4\u65b0\u5bc6\u7801：111111
\n\u5bc6\u7801\u4fee\u6539\u6210\u529f
\n\u4fee\u6539\u540e\u5bc6\u7801：111111
\n*\/ <\/p>\n

\n

\u7ec3\u4e602：\u53d6\u6b3e\u65f6\u589e\u52a0\u9650\u5236：\u5355\u6b21\u6700\u591a\u53d6 5000<\/h3>\n

import java.util.Scanner; \/\/ \u5bfc\u5165Scanner<\/p>\n

public class Day13Ex2 { \/\/ \u516c\u5171\u7c7b
\n static double balance = 8000.0; \/\/ \u6f14\u793a\u4f59\u989d
\n static Scanner sc = new Scanner(System.in); \/\/ \u952e\u76d8\u8f93\u5165<\/p>\n

public static void main(String[] args) { \/\/ \u5165\u53e3
\n withdraw(); \/\/ \u8c03\u7528\u53d6\u6b3e
\n System.out.println("\u4f59\u989d：" + balance); \/\/ \u6253\u5370\u4f59\u989d
\n }<\/p>\n

public static void withdraw() { \/\/ \u5e26\u5355\u7b14\u9650\u989d\u7684\u53d6\u6b3e
\n System.out.print("\u8bf7\u8f93\u5165\u53d6\u6b3e\u91d1\u989d："); \/\/ \u63d0\u793a
\n double amount = sc.nextDouble(); \/\/ \u8bfb\u53d6\u91d1\u989d
\n if (amount <= 0) { \/\/ \u91d1\u989d\u5fc5\u987b\u4e3a\u6b63
\n System.out.println("\u91d1\u989d\u5fc5\u987b\u5927\u4e8e0"); \/\/ \u63d0\u793a
\n return; \/\/ \u7ed3\u675f
\n }
\n if (amount > 5000) { \/\/ \u5355\u6b21\u6700\u591a5000
\n System.out.println("\u5355\u6b21\u6700\u591a\u53d6\u6b3e5000"); \/\/ \u8d85\u9650\u63d0\u793a
\n return; \/\/ \u7ed3\u675f，\u4e0d\u6263\u6b3e
\n }
\n if (amount > balance) { \/\/ \u4f59\u989d\u4e0d\u8db3
\n System.out.println("\u4f59\u989d\u4e0d\u8db3"); \/\/ \u63d0\u793a
\n return; \/\/ \u7ed3\u675f
\n }
\n balance -= amount; \/\/ \u6263\u51cf\u4f59\u989d
\n System.out.println("\u53d6\u6b3e\u6210\u529f"); \/\/ \u6210\u529f\u63d0\u793a
\n }
\n}<\/p>\n

\/*
\n\u9884\u671f\u8f93\u51fa（\u8f93\u51656000）：
\n\u8bf7\u8f93\u5165\u53d6\u6b3e\u91d1\u989d：6000
\n\u5355\u6b21\u6700\u591a\u53d6\u6b3e5000
\n\u4f59\u989d：8000.0<\/p>\n

\u9884\u671f\u8f93\u51fa（\u8f93\u51653000）：
\n\u8bf7\u8f93\u5165\u53d6\u6b3e\u91d1\u989d：3000
\n\u53d6\u6b3e\u6210\u529f
\n\u4f59\u989d：5000.0
\n*\/ <\/p>\n

\n

\u7ec3\u4e603：\u7528\u6570\u7ec4\u8bb0\u5f55\u6700\u8fd1 5 \u7b14\u64cd\u4f5c\u91d1\u989d（\u5b58\u6b3e\u6b63\u3001\u53d6\u6b3e\u8d1f），\u5e76\u63d0\u4f9b\u201c\u6253\u5370\u6d41\u6c34\u201d<\/h3>\n

public class Day13Ex3 { \/\/ \u516c\u5171\u7c7b
\n static double[] records = new double[5]; \/\/ \u6700\u8fd15\u7b14\u6d41\u6c34
\n static int count = 0; \/\/ \u5df2\u8bb0\u5f55\u7b14\u6570<\/p>\n

public static void main(String[] args) { \/\/ \u5165\u53e3：\u6a21\u62df\u51e0\u7b14\u540e\u6253\u5370
\n addRecord(200); \/\/ \u5b58\u6b3e\u8bb0+200
\n addRecord(-100); \/\/ \u53d6\u6b3e\u8bb0-100
\n addRecord(50); \/\/ \u5b58\u6b3e\u8bb0+50
\n printRecords(); \/\/ \u6253\u5370\u6d41\u6c34
\n }<\/p>\n

public static void addRecord(double amount) { \/\/ \u8ffd\u52a0\u4e00\u7b14\u6d41\u6c34
\n if (count < records.length) { \/\/ \u8fd8\u6ca1\u6ee15\u7b14
\n records[count] = amount; \/\/ \u653e\u5230\u4e0b\u4e00\u4e2a\u7a7a\u4f4d
\n count++; \/\/ \u7b14\u6570\u52a01
\n } else { \/\/ \u5df2\u6ee1：\u4e22\u6389\u6700\u65e7，\u6574\u4f53\u5de6\u79fb
\n for (int i = 0; i < records.length – 1; i++) { \/\/ \u4ece\u5de6\u5f80\u53f3\u632a
\n records[i] = records[i + 1]; \/\/ \u540e\u4e00\u4e2a\u8986\u76d6\u524d\u4e00\u4e2a
\n }
\n records[records.length – 1] = amount; \/\/ \u6700\u65b0\u4e00\u7b14\u653e\u6700\u540e
\n }
\n }<\/p>\n

public static void printRecords() { \/\/ \u6253\u5370\u6d41\u6c34\u83dc\u5355\u529f\u80fd
\n System.out.println("—– \u6700\u8fd1\u6d41\u6c34 —–"); \/\/ \u6807\u9898
\n for (int i = 0; i < count && i < records.length; i++) { \/\/ \u53ea\u6253\u5370\u6709\u6548\u7b14\u6570
\n System.out.println("\u7b2c" + (i + 1) + "\u7b14：" + records[i]); \/\/ \u6253\u5370\u6bcf\u7b14
\n }
\n }
\n}<\/p>\n

\/*
\n\u9884\u671f\u8f93\u51fa：
\n—– \u6700\u8fd1\u6d41\u6c34 —–
\n\u7b2c1\u7b14：200.0
\n\u7b2c2\u7b14：-100.0
\n\u7b2c3\u7b14：50.0
\n*\/ <\/p>\n

\n

\u7ec3\u4e604：\u767b\u5f55\u6210\u529f\u540e\u663e\u793a\u9690\u85cf\u8d26\u53f7（1001\u21921**1），\u5e76\u7edf\u8ba1\u767b\u5f55\u5931\u8d25\u603b\u6b21\u6570<\/h3>\n

public class Day13Ex4 { \/\/ \u516c\u5171\u7c7b
\n static String[] ids = {"1001", "1002"}; \/\/ \u8d26\u53f7
\n static String[] pwds = {"123456", "234567"}; \/\/ \u5bc6\u7801
\n static int failCount = 0; \/\/ \u767b\u5f55\u5931\u8d25\u603b\u6b21\u6570<\/p>\n

public static void main(String[] args) { \/\/ \u5165\u53e3
\n boolean ok1 = login("1001", "000000"); \/\/ \u6545\u610f\u8f93\u9519
\n System.out.println("\u7b2c1\u6b21\u767b\u5f55\u7ed3\u679c：" + ok1); \/\/ \u6253\u5370\u7ed3\u679c
\n boolean ok2 = login("1001", "123456"); \/\/ \u8f93\u5bf9
\n System.out.println("\u7b2c2\u6b21\u767b\u5f55\u7ed3\u679c：" + ok2); \/\/ \u6253\u5370\u7ed3\u679c
\n System.out.println("\u5931\u8d25\u603b\u6b21\u6570：" + failCount); \/\/ \u6253\u5370\u5931\u8d25\u7edf\u8ba1
\n }<\/p>\n

public static boolean login(String id, String pwd) { \/\/ \u767b\u5f55\u6821\u9a8c
\n for (int i = 0; i < ids.length; i++) { \/\/ \u904d\u5386\u7528\u6237
\n if (ids[i].equals(id) && pwds[i].equals(pwd)) { \/\/ \u8d26\u53f7\u5bc6\u7801\u90fd\u5bf9
\n System.out.println("\u767b\u5f55\u6210\u529f，\u8d26\u53f7：" + hideId(ids[i])); \/\/ \u663e\u793a\u9690\u85cf\u8d26\u53f7
\n return true; \/\/ \u8fd4\u56de\u6210\u529f
\n }
\n }
\n failCount++; \/\/ \u5931\u8d25\u6b21\u6570+1
\n System.out.println("\u767b\u5f55\u5931\u8d25"); \/\/ \u63d0\u793a\u5931\u8d25
\n return false; \/\/ \u8fd4\u56de\u5931\u8d25
\n }<\/p>\n

public static String hideId(String id) { \/\/ \u9690\u85cf\u4e2d\u95f4\u5b57\u7b26
\n if (id == null || id.length() <= 2) { \/\/ \u592a\u77ed\u4e0d\u5904\u7406
\n return id; \/\/ \u539f\u6837\u8fd4\u56de
\n }
\n char first = id.charAt(0); \/\/ \u9996\u5b57\u7b26
\n char last = id.charAt(id.length() – 1); \/\/ \u5c3e\u5b57\u7b26
\n String mid = ""; \/\/ \u4e2d\u95f4\u661f\u53f7
\n for (int i = 0; i < id.length() – 2; i++) { \/\/ \u4e2d\u95f4\u6709\u51e0\u4f4d\u5c31\u52a0\u51e0\u4e2a*
\n mid += "*"; \/\/ \u8ffd\u52a0*
\n }
\n return first + mid + last; \/\/ \u62fc\u62101**1\u5f62\u5f0f
\n }
\n}<\/p>\n

\/*
\n\u9884\u671f\u8f93\u51fa：
\n\u767b\u5f55\u5931\u8d25
\n\u7b2c1\u6b21\u767b\u5f55\u7ed3\u679c：false
\n\u767b\u5f55\u6210\u529f，\u8d26\u53f7：1**1
\n\u7b2c2\u6b21\u767b\u5f55\u7ed3\u679c：true
\n\u5931\u8d25\u603b\u6b21\u6570：1
\n*\/ <\/p>\n

\n

\u7b2c\u4e8c\u90e8\u5206：Day 14 \u8be6\u7ec6\u6559\u7a0b<\/h2>\n
\n

\u4eca\u65e5\u76ee\u6807<\/h3>\n
  • \u7406\u89e3\u4ec0\u4e48\u662f\u7c7b\u3001\u4ec0\u4e48\u662f\u5bf9\u8c61<\/li>\n
  • \u4f1a\u5b9a\u4e49\u5c5e\u6027（\u6210\u5458\u53d8\u91cf）\u548c\u884c\u4e3a（\u6210\u5458\u65b9\u6cd5）<\/li>\n
  • \u4f1a\u7528\u00a0new\u00a0\u521b\u5efa\u5bf9\u8c61，\u5e76\u7528\u00a0\u5bf9\u8c61.\u5c5e\u6027 \/ \u5bf9\u8c61.\u65b9\u6cd5()\u00a0\u8c03\u7528<\/li>\n
  • \u80fd\u628a\u6628\u5929 ATM \u7684\u201c\u5e73\u884c\u6570\u7ec4\u201d，\u5347\u7ea7\u6210\u201c\u4e00\u4e2a\u5bf9\u8c61\u4ee3\u8868\u4e00\u4e2a\u8d26\u6237\u201d<\/li>\n
    \n

    \u4e00\u3001\u5148\u5efa\u7acb\u6982\u5ff5（\u4e00\u770b\u5c31\u61c2）<\/h3>\n

    \u7c7b = \u56fe\u7eb8 \/ \u6a21\u5177<\/p>\n

    \u5bf9\u8c61 = \u6309\u56fe\u7eb8\u505a\u51fa\u6765\u7684\u5177\u4f53\u4e1c\u897f<\/p>\n

    \u7c7b：\u624b\u673a\u56fe\u7eb8（\u90fd\u6709\u54c1\u724c\u3001\u4ef7\u683c；\u90fd\u80fd\u5f00\u673a\u3001\u6253\u7535\u8bdd）<\/p>\n

    \u5bf9\u8c61：\u4f60\u7684\u7ea2\u8272\u5c0f\u7c73\u3001\u6211\u7684\u9ed1\u8272\u534e\u4e3a \u2014\u2014 \u5f7c\u6b64\u6570\u636e\u72ec\u7acb<\/p>\n\n\u540d\u8bcd\u542b\u4e49\u4ee3\u7801\u5bf9\u5e94<\/tr>\n\n\n\n\n\n
    \n

    \u7c7b Class<\/p>\n<\/td>\n

    		\n

    \u6a21\u677f<\/p>\n<\/td>\n

    		\n

    class Student { }<\/p>\n<\/td>\n<\/tr>\n

    \n

    \u5bf9\u8c61 Object<\/p>\n<\/td>\n

    		\n

    \u5b9e\u4f8b<\/p>\n<\/td>\n

    		\n

    Student s = new Student();<\/p>\n<\/td>\n<\/tr>\n

    \n

    \u5c5e\u6027<\/p>\n<\/td>\n

    		\n

    \u5bf9\u8c61\u6709\u4ec0\u4e48\u6570\u636e<\/p>\n<\/td>\n

    		\n

    String name; int age;<\/p>\n<\/td>\n<\/tr>\n

    \n

    \u884c\u4e3a<\/p>\n<\/td>\n

    		\n

    \u5bf9\u8c61\u80fd\u505a\u4ec0\u4e48<\/p>\n<\/td>\n

    		\n

    void study() { }<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \n

    \u4e8c\u3001\u4e3a\u4ec0\u4e48\u8981\u4ece\u6570\u7ec4\u5347\u7ea7\u5230\u5bf9\u8c61？<\/h3>\n

    \u6628\u5929 ATM：<\/p>\n

    ids[i] \/ pwds[i] \/ moneys[i] \u2014\u2014 \u9760\u540c\u4e00\u4e2a i \u7ed1\u5728\u4e00\u8d77，\u5bb9\u6613\u5bf9\u9519\u884c <\/p>\n

    \u4eca\u5929\u5e0c\u671b：<\/p>\n

    \u4e00\u4e2a Account \u5bf9\u8c61\u81ea\u5df1\u5e26\u7740：id\u3001pwd\u3001money <\/p>\n

    \u597d\u5904：\u4e00\u4e2a\u5bf9\u8c61\u5c31\u662f\u4e00\u4e2a\u5b8c\u6574\u8d26\u6237，\u6570\u636e\u4e0d\u6563\u843d\u3002<\/p>\n

    \n

    \u4e09\u3001\u6700\u5c0f\u4f8b\u5b50：\u5b9a\u4e49\u7c7b \u2192 \u521b\u5efa\u5bf9\u8c61 \u2192 \u8c03\u7528<\/h3>\n

    \u5b66\u4e60\u8def\u5f84<\/h4>\n
  • \u5148\u5199\u00a0Student\u00a0\u7c7b（\u6709\u4ec0\u4e48 + \u80fd\u5e72\u4ec0\u4e48）<\/li>\n
  • \u5728\u00a0main\u00a0\u91cc\u00a0new\u00a0\u51fa\u5bf9\u8c61<\/li>\n
  • \u7ed9\u5c5e\u6027\u8d4b\u503c<\/li>\n
  • \u8c03\u7528\u65b9\u6cd5<\/li>\n

    public class StudentDemo { \/\/ \u6f14\u793a\u4e3b\u7c7b（\u5efa\u8bae Student \u5355\u72ec\u4e00\u4e2a\u6587\u4ef6；\u8fd9\u91cc\u4e3a\u65b9\u4fbf\u653e\u4e00\u8d77）
    \n public static void main(String[] args) { \/\/ \u7a0b\u5e8f\u5165\u53e3
    \n Student s1 = new Student(); \/\/ \u6309Student\u6a21\u677f\u521b\u5efa\u5bf9\u8c61s1
    \n s1.name = "\u5f20\u4e09"; \/\/ \u7ed9s1\u7684\u59d3\u540d\u8d4b\u503c
    \n s1.age = 18; \/\/ \u7ed9s1\u7684\u5e74\u9f84\u8d4b\u503c
    \n s1.study(); \/\/ \u8c03\u7528s1\u7684\u5b66\u4e60\u65b9\u6cd5
    \n s1.show(); \/\/ \u8c03\u7528s1\u7684\u5c55\u793a\u65b9\u6cd5<\/p>\n

    Student s2 = new Student(); \/\/ \u518d\u521b\u5efa\u53e6\u4e00\u4e2a\u72ec\u7acb\u5bf9\u8c61s2
    \n s2.name = "\u674e\u56db"; \/\/ s2\u6709\u81ea\u5df1\u7684\u6570\u636e，\u4e0d\u5f71\u54cds1
    \n s2.age = 19; \/\/ \u7ed9s2\u8d4b\u503c\u5e74\u9f84
    \n s2.show(); \/\/ \u5c55\u793as2
    \n }
    \n}<\/p>\n

    class Student { \/\/ \u5b66\u751f\u7c7b：\u6a21\u677f
    \n String name; \/\/ \u5c5e\u6027：\u59d3\u540d（\u6bcf\u4e2a\u5bf9\u8c61\u5404\u6709\u4e00\u4efd）
    \n int age; \/\/ \u5c5e\u6027：\u5e74\u9f84<\/p>\n

    public void study() { \/\/ \u884c\u4e3a：\u5b66\u4e60（\u5bf9\u8c61\u65b9\u6cd5，\u5148\u4e0d\u5199static）
    \n System.out.println(name + " \u6b63\u5728\u5b66\u4e60Java"); \/\/ \u4f7f\u7528\u672c\u5bf9\u8c61\u7684name
    \n }<\/p>\n

    public void show() { \/\/ \u884c\u4e3a：\u5c55\u793a\u4fe1\u606f
    \n System.out.println("\u59d3\u540d：" + name + "，\u5e74\u9f84：" + age); \/\/ \u6253\u5370\u672c\u5bf9\u8c61\u5c5e\u6027
    \n }
    \n}<\/p>\n

    \/*
    \n\u9884\u671f\u8f93\u51fa：
    \n\u5f20\u4e09 \u6b63\u5728\u5b66\u4e60Java
    \n\u59d3\u540d：\u5f20\u4e09，\u5e74\u9f84：18
    \n\u59d3\u540d：\u674e\u56db，\u5e74\u9f84：19
    \n*\/ <\/p>\n

    \n

    \u56db\u3001\u9010\u9879\u7cbe\u8bb2<\/h3>\n

    1）\u5c5e\u6027\u5199\u5728\u54ea？<\/h4>\n

    \u5199\u5728\u7c7b\u91cc\u3001\u65b9\u6cd5\u5916\u00a0\u2192 \u5c5e\u4e8e\u5bf9\u8c61\u3002<\/p>\n

    class Student { \/\/ \u5b66\u751f\u7c7b
    \n String name; \/\/ \u6210\u5458\u53d8\u91cf\/\u5c5e\u6027
    \n int age; \/\/ \u6210\u5458\u53d8\u91cf\/\u5c5e\u6027
    \n} <\/p>\n

    \u9ed8\u8ba4\u503c\u8bb0\u4f4f：<\/p>\n\n\u7c7b\u578b\u9ed8\u8ba4\u503c<\/tr>\n\n\n\n\n\n
    \n

    int<\/p>\n<\/td>\n

    		\n

    0<\/p>\n<\/td>\n<\/tr>\n

    \n

    double<\/p>\n<\/td>\n

    		\n

    0.0<\/p>\n<\/td>\n<\/tr>\n

    \n

    boolean<\/p>\n<\/td>\n

    		\n

    false<\/p>\n<\/td>\n<\/tr>\n

    \n

    String<\/p>\n<\/td>\n

    		\n

    null<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    2）\u884c\u4e3a\u600e\u4e48\u5199？<\/h4>\n

    \u548c\u4ee5\u524d\u65b9\u6cd5\u5f88\u50cf，\u4f46\u5bf9\u8c61\u65b9\u6cd5\u901a\u5e38\u5148\u4e0d\u5199 static\u3002<\/p>\n

    public void study() { \/\/ \u5bf9\u8c61\u65b9\u6cd5
    \n System.out.println(name + " \u6b63\u5728\u5b66\u4e60"); \/\/ \u76f4\u63a5\u7528\u81ea\u5df1\u7684\u5c5e\u6027
    \n} <\/p>\n

    3）new\u00a0\u505a\u4e86\u4ec0\u4e48？<\/h4>\n

    Student s1 = new Student();<\/p>\n

    1. \u5728\u5806\u91cc\u521b\u5efa\u51fa\u4e00\u4e2aStudent\u5bf9\u8c61
    \n2. \u5c5e\u6027\u5148\u662f\u9ed8\u8ba4\u503c
    \n3. \u628a\u5bf9\u8c61\u5730\u5740\u4ea4\u7ed9\u5f15\u7528\u53d8\u91cfs1
    \nStudent s1 = new Student(); \/\/ s1\u662f\u201c\u9065\u63a7\u5668\u201d，\u6307\u5411\u771f\u6b63\u7684\u5b66\u751f\u5bf9\u8c61 <\/p>\n

    4）\u8c03\u7528\u56fa\u5b9a\u59ff\u52bf<\/h4>\n

    \u5bf9\u8c61\u540d.\u5c5e\u6027 = \u503c; \/\/ \u8bbf\u95ee\u5c5e\u6027
    \n\u5bf9\u8c61\u540d.\u65b9\u6cd5(\u53c2\u6570); \/\/ \u8c03\u7528\u65b9\u6cd5 <\/p>\n

    \n

    \u4e94\u3001static \u65b9\u6cd5 vs \u5bf9\u8c61\u65b9\u6cd5<\/h3>\n\nstatic \u65b9\u6cd5\u5bf9\u8c61\u65b9\u6cd5（\u4eca\u5929\u91cd\u70b9）<\/tr>\n\n\n\n\n
    \n

    \u8c03\u7528<\/p>\n<\/td>\n

    		\n

    \u7c7b\u540d.\u65b9\u6cd5()\u00a0\/ \u540c\u7c7b\u76f4\u63a5\u8c03<\/p>\n<\/td>\n

    		\n

    \u5fc5\u987b\u5148\u6709\u5bf9\u8c61：\u5bf9\u8c61.\u65b9\u6cd5()<\/p>\n<\/td>\n<\/tr>\n

    \n

    \u4f8b\u5b50<\/p>\n<\/td>\n

    		\n

    main\u3001\u5de5\u5177\u65b9\u6cd5<\/p>\n<\/td>\n

    		\n

    study()\u3001deposit()<\/p>\n<\/td>\n<\/tr>\n

    \n

    \u548c\u5c5e\u6027<\/p>\n<\/td>\n

    		\n

    \u4e0d\u65b9\u4fbf\u76f4\u63a5\u7528\u5bf9\u8c61\u5c5e\u6027<\/p>\n<\/td>\n

    		\n

    \u76f4\u63a5\u7528\u81ea\u5df1\u7684\u5c5e\u6027<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    public class CallCompare { \/\/ \u5bf9\u6bd4\u8c03\u7528\u65b9\u5f0f
    \n public static void main(String[] args) { \/\/ static\u5165\u53e3
    \n sayHello(); \/\/ static\u65b9\u6cd5\u53ef\u76f4\u63a5\u8c03\u7528
    \n Student s = new Student(); \/\/ \u5148\u521b\u5efa\u5bf9\u8c61
    \n s.name = "\u738b\u4e94"; \/\/ \u518d\u8bbe\u5c5e\u6027
    \n s.study(); \/\/ \u518d\u8c03\u5bf9\u8c61\u65b9\u6cd5
    \n }<\/p>\n

    public static void sayHello() { \/\/ static\u5de5\u5177\u65b9\u6cd5
    \n System.out.println("hello"); \/\/ \u6253\u5370
    \n }
    \n}<\/p>\n

    class Student { \/\/ \u5b66\u751f\u7c7b
    \n String name; \/\/ \u5c5e\u6027
    \n public void study() { \/\/ \u5bf9\u8c61\u65b9\u6cd5
    \n System.out.println(name + " \u5b66\u4e60\u4e2d"); \/\/ \u7528\u5bf9\u8c61\u81ea\u5df1\u7684name
    \n }
    \n}<\/p>\n

    \/*
    \n\u9884\u671f\u8f93\u51fa：
    \nhello
    \n\u738b\u4e94 \u5b66\u4e60\u4e2d
    \n*\/ <\/p>\n

    \n

    \u516d\u3001\u7efc\u5408\u6848\u4f8b：Account \u8d26\u6237\u7c7b（\u627f\u63a5 ATM）<\/h3>\n

    public class AccountDemo { \/\/ \u6f14\u793a\u4e3b\u7c7b
    \n public static void main(String[] args) { \/\/ \u5165\u53e3
    \n Account a1 = new Account(); \/\/ \u521b\u5efa\u8d26\u62371
    \n a1.id = "1001"; \/\/ \u8bbe\u7f6e\u8d26\u53f7
    \n a1.pwd = "123456"; \/\/ \u8bbe\u7f6e\u5bc6\u7801
    \n a1.money = 1000.0; \/\/ \u8bbe\u7f6e\u4f59\u989d<\/p>\n

    Account a2 = new Account(); \/\/ \u521b\u5efa\u8d26\u62372（\u4e0ea1\u6570\u636e\u72ec\u7acb）
    \n a2.id = "1002"; \/\/ \u8d26\u53f7
    \n a2.pwd = "234567"; \/\/ \u5bc6\u7801
    \n a2.money = 2000.0; \/\/ \u4f59\u989d<\/p>\n

    a1.show(); \/\/ \u67e5\u770ba1
    \n a1.deposit(300); \/\/ a1\u5b58\u6b3e300
    \n a1.withdraw(100); \/\/ a1\u53d6\u6b3e100
    \n a1.show(); \/\/ \u518d\u67e5\u770ba1<\/p>\n

    boolean ok = a1.login("1001", "123456"); \/\/ \u7528a1\u6821\u9a8c\u767b\u5f55
    \n System.out.println("\u767b\u5f55\u7ed3\u679c：" + ok); \/\/ \u6253\u5370\u7ed3\u679c
    \n a2.show(); \/\/ a2\u4f59\u989d\u4ecd\u662f2000，\u8bc1\u660e\u5bf9\u8c61\u4e92\u76f8\u72ec\u7acb
    \n }
    \n}<\/p>\n

    class Account { \/\/ \u8d26\u6237\u7c7b：\u5c5e\u6027+\u884c\u4e3a\u6253\u5305
    \n String id; \/\/ \u5c5e\u6027：\u8d26\u53f7
    \n String pwd; \/\/ \u5c5e\u6027：\u5bc6\u7801
    \n double money; \/\/ \u5c5e\u6027：\u4f59\u989d<\/p>\n

    public void show() { \/\/ \u663e\u793a\u8d26\u6237\u4fe1\u606f
    \n System.out.println("\u8d26\u53f7：" + id + "，\u4f59\u989d：" + money); \/\/ \u6253\u5370\u672c\u5bf9\u8c61\u6570\u636e
    \n }<\/p>\n

    public void deposit(double amount) { \/\/ \u5b58\u6b3e
    \n if (amount <= 0) { \/\/ \u6821\u9a8c\u91d1\u989d
    \n System.out.println("\u91d1\u989d\u5fc5\u987b\u5927\u4e8e0"); \/\/ \u63d0\u793a
    \n return; \/\/ \u7ed3\u675f
    \n }
    \n money += amount; \/\/ \u672c\u5bf9\u8c61\u4f59\u989d\u589e\u52a0
    \n System.out.println(id + " \u5b58\u6b3e\u6210\u529f，\u4f59\u989d：" + money); \/\/ \u6210\u529f\u63d0\u793a
    \n }<\/p>\n

    public void withdraw(double amount) { \/\/ \u53d6\u6b3e
    \n if (amount <= 0) { \/\/ \u91d1\u989d\u6821\u9a8c
    \n System.out.println("\u91d1\u989d\u5fc5\u987b\u5927\u4e8e0"); \/\/ \u63d0\u793a
    \n return; \/\/ \u7ed3\u675f
    \n }
    \n if (amount > money) { \/\/ \u4f59\u989d\u6821\u9a8c
    \n System.out.println("\u4f59\u989d\u4e0d\u8db3"); \/\/ \u63d0\u793a
    \n return; \/\/ \u7ed3\u675f
    \n }
    \n money -= amount; \/\/ \u672c\u5bf9\u8c61\u4f59\u989d\u51cf\u5c11
    \n System.out.println(id + " \u53d6\u6b3e\u6210\u529f，\u4f59\u989d：" + money); \/\/ \u6210\u529f\u63d0\u793a
    \n }<\/p>\n

    public boolean login(String inputId, String inputPwd) { \/\/ \u767b\u5f55\u6821\u9a8c
    \n return id.equals(inputId) && pwd.equals(inputPwd); \/\/ \u5185\u5bb9\u76f8\u7b49\u8fd4\u56detrue
    \n }
    \n}<\/p>\n

    \/*
    \n\u9884\u671f\u8f93\u51fa：
    \n\u8d26\u53f7：1001，\u4f59\u989d：1000.0
    \n1001 \u5b58\u6b3e\u6210\u529f，\u4f59\u989d：1300.0
    \n1001 \u53d6\u6b3e\u6210\u529f，\u4f59\u989d：1200.0
    \n\u8d26\u53f7：1001，\u4f59\u989d：1200.0
    \n\u767b\u5f55\u7ed3\u679c：true
    \n\u8d26\u53f7：1002，\u4f59\u989d：2000.0
    \n*\/ <\/p>\n

    \n

    \u4e03\u3001\u5bf9\u8c61\u6570\u7ec4（\u4e3a\u7ba1\u7406\u7cfb\u7edf\u6253\u57fa\u7840）<\/h3>\n

    \u6ce8\u610f：new Account[3]\u00a0\u53ea\u662f\u521b\u5efa\u4e86 3 \u4e2a\u201c\u683c\u5b50\u201d，\u683c\u5b50\u91cc\u5148\u662f\u00a0null，\u8fd8\u8981\u518d\u00a0new Account()\u00a0\u653e\u8fdb\u53bb\u3002<\/p>\n

    public class AccountArrayDemo { \/\/ \u5bf9\u8c61\u6570\u7ec4\u6f14\u793a
    \n public static void main(String[] args) { \/\/ \u5165\u53e3
    \n Account[] arr = new Account[3]; \/\/ \u957f\u5ea6\u4e3a3\u7684\u8d26\u6237\u6570\u7ec4，\u5143\u7d20\u9ed8\u8ba4null<\/p>\n

    arr[0] = new Account(); \/\/ \u7b2c0\u683c\u653e\u5165\u8d26\u6237\u5bf9\u8c61
    \n arr[0].id = "1001"; \/\/ \u8bbe\u7f6e\u8d26\u53f7
    \n arr[0].pwd = "123456"; \/\/ \u8bbe\u7f6e\u5bc6\u7801
    \n arr[0].money = 1000; \/\/ \u8bbe\u7f6e\u4f59\u989d<\/p>\n

    arr[1] = new Account(); \/\/ \u7b2c1\u683c\u518d\u653e\u4e00\u4e2a\u8d26\u6237
    \n arr[1].id = "1002"; \/\/ \u8d26\u53f7
    \n arr[1].pwd = "234567"; \/\/ \u5bc6\u7801
    \n arr[1].money = 2000; \/\/ \u4f59\u989d<\/p>\n

    for (int i = 0; i < arr.length; i++) { \/\/ \u904d\u5386\u6570\u7ec4
    \n if (arr[i] != null) { \/\/ \u7a7a\u683c\u5b50\u4e0d\u80fd\u8c03\u7528，\u5426\u5219\u7a7a\u6307\u9488
    \n arr[i].show(); \/\/ \u8c03\u7528\u6bcf\u4e2a\u5bf9\u8c61\u81ea\u5df1\u7684show
    \n }
    \n }
    \n }
    \n}<\/p>\n

    class Account { \/\/ \u8d26\u6237\u7c7b
    \n String id; \/\/ \u8d26\u53f7
    \n String pwd; \/\/ \u5bc6\u7801
    \n double money; \/\/ \u4f59\u989d<\/p>\n

    public void show() { \/\/ \u663e\u793a
    \n System.out.println("\u8d26\u53f7：" + id + "，\u4f59\u989d：" + money); \/\/ \u6253\u5370
    \n }
    \n}<\/p>\n

    \/*
    \n\u9884\u671f\u8f93\u51fa：
    \n\u8d26\u53f7：1001，\u4f59\u989d：1000.0
    \n\u8d26\u53f7：1002，\u4f59\u989d：2000.0
    \n*\/ <\/p>\n

    \n

    \u516b\u3001\u5efa\u8bae\u4f60\u8fd9\u6837\u7ec3<\/h3>\n
  • \u5148\u5199\u53ea\u542b\u5c5e\u6027\u7684\u00a0Student，main\u00a0\u91cc\u8d4b\u503c\u5e76\u6253\u5370<\/li>\n
  • \u518d\u7ed9\u00a0Student\u00a0\u52a0\u00a0show()\u00a0\/\u00a0study()<\/li>\n
  • \u5199\u00a0Account\u00a0\u7684\u00a0deposit\u00a0\/\u00a0withdraw<\/li>\n
  • \u6700\u540e\u505a\u00a0Account[]\u00a0\u904d\u5386<\/li>\n
    \n

    \u4e5d\u3001\u8fd8\u6709\u6ca1\u6709\u522b\u7684\u5199\u6cd5？<\/h3>\n

    \u5199\u6cd5 A：\u521b\u5efa\u540e\u96c6\u4e2d\u521d\u59cb\u5316<\/p>\n

    Student s = new Student(); \/\/ \u5148new\u5bf9\u8c61
    \ns.name = "\u5f20\u4e09"; \/\/ \u518d\u8d4b\u59d3\u540d
    \ns.age = 18; \/\/ \u518d\u8d4b\u5e74\u9f84
    \ns.show(); \/\/ \u6700\u540e\u8c03\u7528\u65b9\u6cd5 <\/p>\n

    \u5199\u6cd5 B：\u5c55\u793a\u4fe1\u606f\u5199\u8be6\u7ec6\u4e00\u70b9<\/p>\n

    public void show() { \/\/ \u5c55\u793a\u65b9\u6cd5
    \n System.out.println("—– \u5b66\u751f\u4fe1\u606f —–"); \/\/ \u6807\u9898
    \n System.out.println("\u59d3\u540d：" + name); \/\/ \u59d3\u540d
    \n System.out.println("\u5e74\u9f84：" + age); \/\/ \u5e74\u9f84
    \n} <\/p>\n

    \u5199\u6cd5 C：\u9884\u544a\u5c01\u88c5（Day15）：\u5c5e\u6027\u5148 private，\u7528\u65b9\u6cd5\u8bfb\u5199<\/p>\n

    class Student { \/\/ \u5b66\u751f\u7c7b
    \n private String name; \/\/ private：\u5916\u90e8\u4e0d\u80fd\u76f4\u63a5s.name\u4e71\u6539<\/p>\n

    public void setName(String n) { \/\/ \u95f4\u63a5\u8d4b\u503c
    \n name = n; \/\/ \u628a\u53c2\u6570\u8d4b\u7ed9\u5c5e\u6027
    \n }<\/p>\n

    public String getName() { \/\/ \u95f4\u63a5\u53d6\u503c
    \n return name; \/\/ \u8fd4\u56de\u5c5e\u6027
    \n }
    \n} <\/p>\n

    \n

    \u5341\u3001\u56fa\u5b9a\u5199\u6cd5<\/h3>\n

    class \u7c7b\u540d {
    \n \/\/ \u5c5e\u6027
    \n \/\/ \u65b9\u6cd5
    \n}
    \n\/\/ \u7c7b\u662f\u6a21\u677f：\u5148\u63cf\u8ff0\u201c\u6709\u4ec0\u4e48\u3001\u80fd\u505a\u4ec0\u4e48\u201d<\/p>\n

    \u7c7b\u578b \u5bf9\u8c61\u540d = new \u7c7b\u578b();
    \n\/\/ new：\u5728\u5806\u4e2d\u521b\u5efa\u5bf9\u8c61
    \n\/\/ \u5bf9\u8c61\u540d：\u4fdd\u5b58\u5bf9\u8c61\u5730\u5740\u7684\u5f15\u7528<\/p>\n

    \u5bf9\u8c61\u540d.\u5c5e\u6027 = \u503c;
    \n\/\/ \u901a\u8fc7\u5f15\u7528\u8bbf\u95ee\u5e76\u8bbe\u7f6e\u5c5e\u6027<\/p>\n

    \u5bf9\u8c61\u540d.\u65b9\u6cd5(\u53c2\u6570);
    \n\/\/ \u901a\u8fc7\u5f15\u7528\u8c03\u7528\u5bf9\u8c61\u65b9\u6cd5<\/p>\n

    public void \u65b9\u6cd5\u540d() { … }
    \n\/\/ \u5bf9\u8c61\u65b9\u6cd5\u901a\u5e38\u5148\u4e0d\u5199static
    \n\/\/ \u8c03\u7528\u524d\u5fc5\u987b\u5148\u6709\u5bf9\u8c61<\/p>\n

    String name; int age;
    \n\/\/ \u5c5e\u6027\u5199\u5728\u7c7b\u4e2d\u3001\u65b9\u6cd5\u5916
    \n\/\/ \u6bcf\u4e2a\u5bf9\u8c61\u5404\u6709\u4e00\u4efd\u72ec\u7acb\u6570\u636e<\/p>\n

    Account[] arr = new Account[3];
    \narr[0] = new Account();
    \n\/\/ \u5bf9\u8c61\u6570\u7ec4\u8981\u4e24\u6b65：\u5148\u5f00\u683c\u5b50，\u518d\u5f80\u6bcf\u4e2a\u683c\u5b50new\u5bf9\u8c61<\/p>\n

    if (arr[i] != null) { arr[i].show(); }
    \n\/\/ \u8c03\u7528\u524d\u5224\u65ad\u975enull，\u907f\u514d\u7a7a\u6307\u9488\u5f02\u5e38 <\/p>\n

    \n

    \u4eca\u65e5\u5fc5\u4f1a<\/h3>\n
      \n
    • \u00a0\u80fd\u8bf4\u51fa\u7c7b\u548c\u5bf9\u8c61\u7684\u533a\u522b<\/li>\n
    • \u00a0\u4f1a\u5b9a\u4e49\u5c5e\u6027\u548c\u6210\u5458\u65b9\u6cd5<\/li>\n
    • \u00a0\u4f1a\u00a0new\u00a0\u521b\u5efa\u5bf9\u8c61\u5e76\u8d4b\u503c<\/li>\n
    • \u00a0\u4f1a\u00a0\u5bf9\u8c61.\u65b9\u6cd5()\u00a0\u8c03\u7528<\/li>\n
    • \u00a0\u80fd\u5199\u7b80\u5355\u00a0Account（show\/deposit\/withdraw）<\/li>\n
    • \u00a0\u77e5\u9053\u5bf9\u8c61\u6570\u7ec4\u8981\u7ed9\u6bcf\u4e2a\u5143\u7d20\u518d\u00a0new\n<\/p>\n<\/li>\n<\/ul>\n
      \n

      \u7b2c\u4e09\u90e8\u5206：Day 14 \u8bfe\u540e\u7ec3\u4e60<\/h2>\n

      \u7ec3\u4e601：\u5b9a\u4e49\u00a0Phone\u00a0\u7c7b，\u5c5e\u6027 brand\u3001price；\u65b9\u6cd5\u00a0call()\u3001show()；\u5728 main \u91cc\u521b\u5efa\u4e24\u4e2a\u624b\u673a\u5bf9\u8c61\u5e76\u8c03\u7528<\/p>\n

      \u7ec3\u4e602：\u5b9a\u4e49\u00a0Book\u00a0\u7c7b（\u4e66\u540d\u3001\u4f5c\u8005\u3001\u4ef7\u683c），\u521b\u5efa\u5bf9\u8c61\u6570\u7ec4\u5b58\u653e 3 \u672c\u4e66\u5e76\u904d\u5386\u6253\u5370<\/p>\n

      \u7ec3\u4e603：\u628a ATM \u7684\u201c\u5f53\u524d\u7528\u6237\u201d\u6539\u6210\u00a0Account\u00a0\u5bf9\u8c61：\u81f3\u5c11\u5b9e\u73b0 query\/deposit\/withdraw<\/p>\n

      \u7ec3\u4e604（\u6311\u6218）：\u5199\u00a0Account[]\u00a0\u652f\u6301\u767b\u5f55：\u8f93\u5165\u8d26\u53f7\u5bc6\u7801，\u627e\u5230\u5bf9\u5e94\u5bf9\u8c61\u540e\u5bf9\u5176\u64cd\u4f5c<\/p>\n","protected":false},"excerpt":{"rendered":"

      \u76ee\u5f55 \u7b2c\u4e00\u90e8\u5206：Day 13 \u7ec3\u4e60\u7b54\u6848
      \n\u7ec3\u4e601：\u7ed9 ATM \u589e\u52a0\u201c\u4fee\u6539\u5bc6\u7801\u201d\u529f\u80fd（\u83dc\u5355\u7b2c6\u9879）
      \n\u7ec3\u4e602：\u53d6\u6b3e\u65f6\u589e\u52a0\u9650\u5236：\u5355\u6b21\u6700\u591a\u53d6 5000
      \n\u7ec3\u4e603：\u7528\u6570\u7ec4\u8bb0\u5f55\u6700\u8fd1 5 \u7b14\u64cd\u4f5c\u91d1\u989d（\u5b58\u6b3e\u6b63\u3001\u53d6\u6b3e\u8d1f），\u5e76\u63d0\u4f9b\u201c\u6253\u5370\u6d41\u6c34\u201d
      \n\u7ec3\u4e604：\u767b\u5f55\u6210\u529f\u540e\u663e\u793a\u9690\u85cf\u8d26\u53f7（1001\u21921**1），\u5e76<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[11824,11825,11823,99,190],"topic":[],"class_list":["post-103892","post","type-post","status-publish","format-standard","hentry","category-server","tag-java---","tag-java-","tag-java","tag-190"],"yoast_head":"\nDay 14\uff1aJava\u7c7b\u4e0e\u5bf9\u8c61 \u00b7 \u5c5e\u6027 \u00b7 \u884c\u4e3a \u00b7 \u521b\u5efa\u5bf9\u8c61 \u00b7 \u5bf9\u8c61\u8c03\u7528 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/103892.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Day 14\uff1aJava\u7c7b\u4e0e\u5bf9\u8c61 \u00b7 \u5c5e\u6027 \u00b7 \u884c\u4e3a \u00b7 \u521b\u5efa\u5bf9\u8c61 \u00b7 \u5bf9\u8c61\u8c03\u7528 - 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