求最大值最小值

import java.util.Arrays;  

public class MaxAndMin {  
    public static void main(String[] args) {  
        int[] data = {313, 89, 123, 323, 313, 15, 90, 56, 39};  
        //    方法1  
        int max = data[0];  
        int min = data[0];  
        for (int i = 0; i < data.length; i++) {  
            if (data[i] > max) {  
                max = data[i];  
            }  
            if (data[i] < min) {  
                min = data[i];  
            }  
        }  
        System.out.println(min);  
        System.out.println(max);  
        //方法二  
        //Arrays.sort(data);  
        //System.out.println(data[0]);  
        //System.out.println(data[data.length - 1]);  
        //方法三  
        //System.out.println(Arrays.stream(data).min().getAsInt());  
        //System.out.println(Arrays.stream(data).max().getAsInt());  
    }  
}  

运行结果：