一、代码
int[] arr = {75,498,20,37,52};
int min,max;
min = max = A[0];
for(int i=0;i<arr.length;i++){
System.out.print(arr[i]+" ");
if(arr[i]>max)
max=arr[i];
if(arr[i]<min)
min=arr[i];}System.out.println("\n数组的最大值是:"+max);
System.out.println("数组的最小值是:"+min);