冒泡排序

public class BubbleSort {
	public static void main(String args[]){
		int i,j,k;
		int array[]={30,50,90,-70,-25};
		
		System.out.println("排序前各元素为:");
		for(i=0;i<array.length;i++)
		System.out.println(array[i]+"");
	
		for(i=0;i<array.length-1;i++)
		for(j=i+1;j<array.length-1;j++)
		if(array[i]>array[j])
		//交换
		{k=array[i];array[i]=array[j];array[j]=k;}
		
		
	System.out.println("排序后各元素为:");
	for(i=0;i<array.length;i++)
	System.out.println(array[i]+"");
}
}