ε=(´ο｀*)))   一个笔试题，就这样了，不想优化了   能出答案就行

import java.util.Scanner;

/**

* 需求：给出一个数组，排序后，取相邻两值差的最大值

*/

public class maxInput {

public static void main(String[] args) {

Scanner in = new Scanner(System.in);

while (in.hasNextLine()) {

String[] val = in.nextLine().split(",");

int[] x = new int[val.length];

for (int i = 0; i < val.length; i++) {

x[i] = Integer.parseInt(val[i]);

}

System.out.println(maximumGap(x));

}

}

public static int maximumGap(int[] nums) {

if (nums.length<3) {

return -1;

}

//冒泡排序

intArray(nums);

//差值放入数组

int[] arr = new int[nums.length-1];

for (int i = 1; i < nums.length; i++) {

arr[i-1] = nums[i]-nums[i-1];

}

intArray(arr);

//返回最后一个值

return arr[arr.length-1];

}

//int数组冒泡排序

public static void intArray(int[] nums) {

for (int i = 0; i < nums.length; i++) {

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

if (nums[j]>nums[j+1]) {

int temp = nums[j+1];

nums[j+1] = nums[j];

nums[j] = temp;

}

}

}

}

}