Java开发网 - 请教帮忙实现一个随机打印功能

Topic: 请教帮忙实现一个随机打印功能

1.请教帮忙实现一个随机打印功能	Copy to clipboard
Posted by: jc841020245 Posted on: 2006-11-13 23:46 随机在屏幕上打印1---60不可以重复打印请高手帮忙谢谢

2.Re:请教帮忙实现一个随机打印功能 [Re: jc841020245]

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Posted by: dracularking
Posted on: 2006-11-14 00:40

import java.util.Random;

public class Test
{
    private static final int MAX=60;
    
    public static void main(String[] args)
    {
        Test test=new Test();
        Random random=new Random(System.currentTimeMillis());
        int[] array=new int[MAX];
        int currentNumber=0,count=0;
        
        while(true)
        {
            currentNumber=Math.abs(random.nextInt())%MAX+1;
            if(test.isRepeat(currentNumber,array,count))
            {
                continue;
            }
            else
            {
                array[count]=currentNumber;
                count++;
            }
            
            if(count>=MAX)
            {
                break;
            } 
        }
        
        test.printNumber(array);
    }
    
    private boolean isRepeat(int currentNumber,int[] array,int count)
    {
        for(int i=0;i<count;i++)
        {
            if(currentNumber==array[i])
            {
                return true;
            }
        }
        return false;
    }
    
    private void printNumber(int[] array)
    {
        for(int i=0;i<MAX;i++)
        {
            System.out.print(array[i]+" ");
        }
    }
}

3.Re:请教帮忙实现一个随机打印功能 [Re: jc841020245]

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Posted by: zhangwensheng
Posted on: 2006-11-14 09:38

import java.util.*;
class test{
public static void main(String str[])
{
int[] num = new int[60];
int i = 0, j = 0;
Random rd = new Random();
System.out.println("生成的随机数:");
for(i = 0; i < 60; i++)
{
do
{
num[i] = Math.abs(rd.nextInt())%60 + 1;
for(j = 0; j < i; j++)
{
if(num[j] == num[i])
{
break;
}
}
if(j == i)
{
break;
}
} while(true);
System.out.print(num[i] + " ");
}
System.out.println("\n排序后:");
for(i = 0; i < 60 - 1; i++)
{
for(j = i + 1; j < 60; j++)
{
if(num[i] > num[j])
{
num[i] = num[i] + num[j];
num[j] = num[i] - num[j];
num[i] = num[i] - num[j];
}
}
}
for(i = 0; i < 60; i++)
{
System.out.print(num[i] + " ");
}
}
}

4.Re:请教帮忙实现一个随机打印功能 [Re: dracularking]

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Posted by: JiafanZhou
Posted on: 2006-11-14 17:37

dracularking wrote:

import java.util.Random;

public class Test
{
    private static final int MAX=60;
    
    public static void main(String[] args)
    {
        Test test=new Test();
        Random random=new Random(System.currentTimeMillis());
        int[] array=new int[MAX];
        int currentNumber=0,count=0;
        
        while(true)
        {
            currentNumber=Math.abs(random.nextInt())%MAX+1;
            if(test.isRepeat(currentNumber,array,count))
            {
                continue;
            }
            else
            {
                array[count]=currentNumber;
                count++;
            }
            
            if(count>=MAX)
            {
                break;
            } 
        }
        
        test.printNumber(array);
    }
    
    private boolean isRepeat(int currentNumber,int[] array,int count)
    {
        for(int i=0;i<count;i++)
        {
            if(currentNumber==array[i])
            {
                return true;
            }
        }
        return false;
    }
    
    private void printNumber(int[] array)
    {
        for(int i=0;i<MAX;i++)
        {
            System.out.print(array[i]+" ");
        }
    }
}

excellent.

5.Re:请教帮忙实现一个随机打印功能 [Re: jc841020245]	Copy to clipboard
Posted by: jc841020245 Posted on: 2006-11-21 09:40 多谢高手感激不尽

Topic: 请教帮忙 实现一个随机打印功能

Topic: 请教帮忙实现一个随机打印功能