Question

当输入的标记为负数时，如何获取获取无效标记输出的代码？

class Main {
    public static void main(String[] args) {
        int i;
        int[] a = new int[6];
        Scanner s = new Scanner(System.in);
        System.out.println("");

        for (i = 0; i < 6; i++) {
            a[i] = s.nextInt();
        }

        for (i = 0; i < 6; i++) {
            if (a[i] < 0) {
                System.out.println("Invalid mark");
            } else {
                if (a[i] > 0) {
                    int max = a[0];    

                    for(i = 0; i < 6; i++) {
                        if (max < a[i]) { 
                            max = a[i];
                        }   
                    } 

                    System.out.println("Highest mark is " + max);
                }
            }
        }
    }
}

Answer 1

有用于删除数组中元素的代码，请参见下面的静态方法：

   import java.util.Scanner;
class Main
{
    public static void main(String[] args)
    {
        int i;
        int a[]=new int[6];
        Scanner s= new Scanner(System.in);
        System.out.println("");
        for( i=0;i<6;i++)
            a[i]=s.nextInt();
        int max=-1;
        for(i=0;i<6;i++)
        {
             if(a[i]<0)
                 System.out.println("Invalid mark");
             else
                 if (max<a[i])
                     max=a[i];  
        }
        if(max>=0)
             System.out.println("Highest mark is "+max);
        else
             System.out.println("No max as there are only invalid inputs!");

    }
}
/** METHOD TO REMOVE AN INTEGER FROM AN ARRAY
 *@ param elem , intArr
 */

public static void remove(int elem, int[] intArr)
{
for(int i = 0; i < intArr.length; i++){
    if(intArr[i] == elem){
        for(int j = i; j < intArr.length - 1; j++){
            intArr[j] = intArr[j+1];
        }
        break;
    }
}


}

程序使用数组检查最大数

1 个答案: