一 動圖演示
也很簡單 就是相鄰兩個數兩兩相比,arr[i]跟arr[j+1]比,如果arr[i]>arr[j+1],則將連個數進行交換,
public static void main(String[] args) {
int arr[] = {1,3,90,54,3};
for (int i=0,len=arr.length-1;i<len;i++){
for (int j=0,len=arr.length-1-i;j<len;j++){
if (arr[j+1] < arr[j]){
int tem = arr[j+1];
arr[j+1] = a[j];
arr[j] = tem;
}
}
}
for (int i=0,len=arr.length;i<len;i++){
System.out.println(arr[i]);
}
}