java初学者题目，求详细解答

java初学者题目，求详细解答

以下是标准答案：

import javax.swing.JOptionPane;
public class Text {
public static void main(String[] args) {
int number=(int)(Math.random()*100);
String num;
num=JOptionPane.showInputDialog(null," 请猜计算机输出的数：（0~100）");
int i=Integer.parseInt(num);
while(i!=number)
{
if(i>number)
JOptionPane.showMessageDialog(null,"输入的数值大了");
else
{
JOptionPane.showMessageDialog(null,"输入的数值小了");
}
num=JOptionPane.showInputDialog(null," 请猜计算机输出的数：（0~100）");
i = Integer.parseInt(num);
}
System.out.println("恭喜你猜对了!");
}
}2013-04-11

import java.io.BufferedReader;import java.io.InputStreamReader;import java.util.Random;public class TestNumber { private A a; public void setA(A a) { this.a = a; } public A getA() { return a; } public boolean judge(int num) { if (a.getV() > num) { System.out.println("小了"); return false; } if (a.getV() < num) { System.out.println("大了"); return false; } else { System.out.println("猜对了"); return true; } } public static void main(String[] args) { TestNumber t = new TestNumber(); A a = new A(new Random().nextInt(100)); t.setA(a); BufferedReader str = new BufferedReader( new InputStreamReader(System.in)); while (true) { System.out.println("请输入要猜的数："); try { if (t.judge(Integer.parseInt(str.readLine()))) { break; } } catch (Exception e) { System.out.println("输入错误请重新输入："); } } }}class A { private int v = 100; public A(int v) { this.setV(v); } public A() { } public void setV(int v) { this.v = v; } public int getV() { return v; }}2013-04-11

在B.java 的文件中：
A{
public int v = 100;
}
public B{

public static void main(String[] args){
int temp = new A().v;
Scanner scan = new Scanner(system.in);
while(true){
int v = scan.nextInt();
if(v>temp){
System.ou.println("输入值大了");
continue;
}else if(v<temp){
System.ou.println("输入值小了");
continue;
}else{
System.ou.println("你猜对了！NB！");
break;
}
}
}

}

导包自己导下就OK；欢迎追问。2013-04-11