有一个整数数组，请求出两两之差绝对值最小的值

public class C01{public static void main(String[] args){int[] a ={ 1, 2, 6, 16, 34, 23, 67, 345 };int n = a.length;int m = 100;int k = 0;for (int i = 0; i < n; i++){for (int j = 1; j < n; j++){if (i != j)k = Math.abs(a[j] - a[i]);if (k < m)m = k;}}System.out.println(m);}}