编程高手帮我编个程序

public class JLTest {
public static void main(String[] args) throws Exception {
int[] result = getMaxAndMin(new int[] { 2, 3, 2, 3, 1, 2, 3, 5, 76, 8,
123, 213, 23, 1, 23, 2, 56, 7, 676, 7, 878 });
System.out.printf("最大值为%d,最小值为%d", result[0], result[1]);
}

// //返回数组,第一个为最小值,第二个为最大值
public static int[] getMaxAndMin(int[] array) {
int max = array[0];
int min = array[0];
for (int i = 0; i < array.length; i++) {
if (array[i] > max)
max = array[i];
if (array[i] < min)
min = array[i];
}

return new int[] { min, max };
}
}

一。方法
import java.util.*;
public class Method {
public int[] Arr(int[] num)
{
Arrays.sort(num);
return num;
}

}
二。实现
public class Test {
public static void main(String[] args) {
Method m=new Method();
//随便定义了个数组
int[] num=new int[]{1,4,2,6,7,0};
m.Arr(num);
System.out.println("最小值为"+num[0]);
System.out.println("最大值为"+num[num.length-1]);
}
}