Java输出最大值,最小值3种方法

小灰灰 2023-01-02 10:29 231阅读 0赞

### 文章目录 ###

*   *  if语句
     *  Scanner输入三个数
     *  数组输入输出n个数

## if语句 ##

1.  if语句,输入三个数,输出对应的最大值,最小值

public static void main(String[] args) {
        
    		int max;
    		int a = 12, b = 34, c = 20;
    		if (a > b && a > c) {
        
    			max = a;
    		} else if (b > a && b > c) {
        
    			max = b;
    		} else {
        
    			max = c;
    		}
    		System.out.printf("最大值:%d\n",max);
    		
    		int min;
    		if (a < b && a < c) {
        
    			min = a;
    		} else if (b > a && b > c) {
        
    			min = b;
    		} else {
        
    			min = c;
    		}
    		System.out.printf("最小值:%d",min);
    	}

输出结果:  
![在这里插入图片描述][20210105162106275.png]

## Scanner输入三个数 ##

1.  加入Scanner,输入三个数判断大小并输出最大值,最小值

public static void main(String[] args) {
        
    		Scanner sc = new Scanner(System.in);
    		System.out.println("输入第一个数:");
    		int a = sc.nextInt();
    		System.out.println("输入第二个数:");
    		int b = sc.nextInt();
    		System.out.println("输入第三个数:");
    		int c = sc.nextInt();
    
    		int max = a > b ? a : b;
    		max = max > c ? max : c;
    		System.out.printf("三个数中最大值:%d\n", max);
    
    		int min = a < b ? a : b;
    		min = min < c ? min : c;
    		System.out.printf("三个数中最小值:%d", min);
    
    	}

输出结果:  
![在这里插入图片描述][2021010516453839.png]

## 数组输入输出n个数 ##

1.  从键盘输入n个数,输出这n个数的最大值,最小值

public static void main(String[] args) {
        
    		Scanner sc = new Scanner(System.in);
    		System.out.println("请输入所需整数的个数:");
    		int n = sc.nextInt();
    		int[] a = new int[n];
    		for (int i = 0; i < n; i++) {
        
    			a[i] = sc.nextInt();
    		}
    		int max = a[0];
    		int min = a[0];
    		for (int i = 0; i < n; i++) {
        
    			if (max < a[i]) {
        
    				max = a[i];
    			}
    			if (min > a[i]) {
        
    				min = a[i];
    			}
    		}
    		System.out.printf("最大值:%d\n", max);
    		System.out.printf("最小值:%d", min);
    	}

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1RoZUNoYW55_size_16_color_FFFFFF_t_70]

[20210105162106275.png]: /images/20221119/9369e9ae123b4f3297662a51a31e52b5.png
[2021010516453839.png]: /images/20221119/9c43854da50d41dbb8afe594344d5e6f.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1RoZUNoYW55_size_16_color_FFFFFF_t_70]: /images/20221119/68c6bf5537144ec29c22dfe2c092f7a0.png