Question

我想首先从控制台获取输入，一个整数，然后是一个由逗号和空格分隔的整数数组。输入如下：
5

55，24，32，22，89

我的代码是：

public static void main (String[] args) {
    //code
     Scanner sc = new Scanner(System.in);
    int num = sc.nextInt();
    int[] array = new int[num];
    String line = sc.nextLine();
    line = line.replaceAll(" ","");
    String[] temp = line.split(",");
    for(String i :temp)
    {
        System.out.print(i+" ");
    }
}

但是它显示InputMismatchException。

Answer 1

尝试在sc.nextLine();之前添加String line = sc.nextLine();

尝试此代码：-

import java.util.*;

public class Main {
  public static void main(String[] args) {
    // code
    Scanner sc = new Scanner(System.in);
    int num = sc.nextInt();
    int[] array = new int[num];
    sc.nextLine(); // advance to new line
    String line = sc.nextLine();
    line = line.replaceAll(" ", "");
    String[] temp = line.split(",");
    for (String i : temp) {
      System.out.print(i + " ");
    }
  }
}

输出：-

5
55, 24, 32, 22, 89
55 24 32 22 89

如何从Java中的控制台获取输入，并以逗号和空格分隔？

1 个答案: