java实现的选择排序

下面是用java实现的选择排序，每次从数组中选取最小的值：
import java.util.Date;
import java.util.Random;
/*
* 选择排序
*/
public class SelectSort {
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);
selectSort(data);
show(data);
}

private static void selectSort(int[] data)
{
int length = data.length;
for(int i=0; i<length-1; i++)
{
int temp = data[i];
for(int j=i+1; j<length; j++)
{
if(data[j] < temp )
{
data[i] = data[j];
data[j] = temp;
temp = data[i];
}
}
data[i]=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("========================");
}
}