e6_5.java

随机生成100个100以内的数

/**
 * @(#)e6_5.java
 *
 * e6_5 application
 *
 * @author 
 * @version 1.00 2009/3/24
 */
import java.io.*; 
public class e6_5 {
    
    public static void main(String[] args) {
    	int arr[]=new int [100];
    	for(int i=0;i<100;i++)
    	{
    		while(true)
    		{
    			arr[i]=(int)(Math.random()*1000);
    			if(arr[i]>99&&arr[i]<1000)
    				break;
       		}
    	}
    	String s=""; 
    	int x;
    	System.out.print("Please input a number:");
    	try{
    		BufferedReader in=new BufferedReader(new InputStreamReader(System.in));
    		s=in.readLine();
    	}
    	catch(IOException e){}
    	x=Integer.parseInt(s);
    	for(int i=0;i<100;i++)
    	{
    		if(x==arr[i])
    		{
    			System.out.println("fount it");
    			break;
    		}
    		if(i==99)
    			System.out.println("missed");  		
    	}
    }
}