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/**

* 冒泡排序

*/

public class BubbleSort {

/**

* 冒泡排序

* 时间复杂度 n^2

* 空间复杂度 1

* @param arr

* @return

*/

public static void bubbleSort(int[] arr){

if(arr.length<=1){

return ;

}else{

boolean tag = true;

for(int i=0;i<arr.length-1;i++){

tag = true;

for(int j=0;j<arr.length-i-1;j++){

if(arr[j]>arr[j+1]){//冒泡过程

tag = false;

Tools.swap(arr,j,j+1);

}

}

if(tag == true )return;

}

return ;

}

}

}