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面向?qū)ο缶幊檀ajava java面向?qū)ο缶幊涕_發(fā)

Java程序面向?qū)ο缶幊痰幕炯軜?gòu) 接口的定義和使用 求完整代碼……謝謝

public class Admins implements Userinterface{

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private String name;

private String password;

private static int userNum;

public Admins() {

userNum ++;

}

public Admins(String name, String password) {

this.name = name;

this.password = password;

userNum ++;

}

public void setPassword(String password) {

this.password = password;

}

public String getPassword() {

return this.password;

}

public String toString() {

return "Total: " + Admins.userNum + "\nName: " + this.name + "\nPassword: " + this.password;

}

public static void main(String [] args) {

Userinterface [] users = new Userinterface[]{new Admins("jeryy", "11111"), new Admins("green", "123123")};

for(Userinterface u: users) {

System.out.println(u);

}

}

}

interface Userinterface{

public void setPassword(String password);

public String getPassword();

public String toString();

}

public class Bins{

public static void main(String [] args) {

int len = 10;

int [] dist = new int [len];

for(int i = 0; i dist.length; i ++) {

dist[i] = (int)(Math.random() * 100);

}

java.util.Arrays.sort(dist);

System.out.println("生成數(shù)組如下: ");

for(int i: dist) {

System.out.print(i + "\t");

}

java.util.Scanner san = new java.util.Scanner(System.in);

System.out.print("輸入要查找的數(shù): ");

int key = san.nextInt();

int res = Bins.binSearch(dist, key);

//System.out.println(res);

String info = (res =0 ) ? (key + ":" + res) : "查找失敗";

System.out.println(info);

}

public static int binSearch(int [] dist, int key) {

java.util.Arrays.sort(dist);

return java.util.Arrays.binarySearch(dist, key);

}

}

什么是java面向?qū)ο缶幊蹋?/h2>

面向?qū)ο缶幊蹋╫op)旨在將現(xiàn)實世界中的概念模擬到計算機中,它將現(xiàn)實世界中的所以事物視作對象。對象是存在的具體實體,具有明確定義的狀態(tài)和行為。

Java面向?qū)ο蟪绦蚓幊?/h2>

public?static?void?main(String?args[])?{

Scanner?scanner?=?new?Scanner(System.in);

System.out.println("請輸入一個開始數(shù)字:");

int?a?=?0;

try?{

a?=?scanner.nextInt();

}?catch?(Exception?e)?{

System.out.println("輸數(shù)字不合法");????????

return;

}

System.out.println("請輸入一個結(jié)束數(shù)字:");

int?b?=?0;????

try?{

b?=?scanner.nextInt();

}?catch?(Exception?e)?{

System.out.println("輸數(shù)字不合法");????????

return;

}????

int?sum?=?0;????

if?(a??b)?{????????

for?(int?i?=?b;?i?=?a;?i++)?{

sum?=?sum?+?i;

}

}?else?{??????

for?(int?i?=?a;?i?=?b;?i++)?{

sum?=?sum?+?i;

}

}

System.out.println(sum);

}

當前名稱:面向?qū)ο缶幊檀ajava java面向?qū)ο缶幊涕_發(fā)
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