java实现的冒泡排序

import java.util.Date;
import java.util.Random;
public class BubbleSort {
public static void main(String args[])
{
int len = 40;
Date date = new Date();
Random random = new Random(date.getSeconds());
int data[]=new int[len];
for(int i = 0; i < len; i++)
{
data[i]=(int)(random.nextFloat()*100+1);
}
System.out.println("Select sort:");
show(data);
bubbleSort(data);
show(data);
}
/*
* 冒泡排序
*/
private static void bubbleSort(int[] data)
{
int len=data.length;
for(int i=len; i>=1; i--)
{
for(int j=0; j<i-1 ; j++)
{
if(data[j+1]<data[j]){
int temp=data[j+1];
data[j+1]=data[j];
data[j]=temp;
}
}
}
}
private static void show(int[] data)
{
System.out.println("========================");
for(int i = 0; i < data.length; i++)
{
System.out.print(data[i] + "    ");
}
System.out.println();
System.out.println("========================");
}
}