递归方法求数组中的最大值

package com.harrison.class02;
public class Code09_GetMax {
  public static int getMax(int[] arr) {
    return process(arr, 0, arr.length-1);
  }
  public static int process(int[] arr,int l,int r) {
    if(l==r) {
      return arr[l];
    }
    int mid=l+((r-l)>>1);
    int leftMax=process(arr, l, mid);
    int rightMax=process(arr, mid+1, r);
    return Math.max(rightMax, leftMax);
  }
  public static void main(String[] args) {
    int[] arr= {3,4,3233,20,5,-4,3,3,-312,8};
    System.out.println(getMax(arr));
  }
}