Question

我希望用户输入一个字符串，然后将该字符串的每个字符分配给数组中的元素。

到目前为止，这是我的代码：

import java.util.Scanner;


public class Apples {


    public static void main(String[] args) {

        Scanner userInput = new Scanner(System.in);
        String name = userInput.nextLine();

        int arrayLength = name.length();

        String ArrayName[] = new String [arrayLength];

        for(int counter = 0; counter < arrayLength; counter++){

            ArrayName[counter] = name.substring(counter);


            System.out.println("Element No" + counter + ": " + name.substring(counter));

        }



    }

Answer 1

public static void main(String[] args) {

        Scanner userInput = new Scanner(System.in);
        String name = userInput.nextLine();

        int arrayLength = name.length();

        String ArrayName[] = new String [arrayLength];
        char[] chars = name.toCharArray();

        for(int counter = 0; counter < arrayLength; counter++) {
            ArrayName[counter] = chars[counter] + "";
            System.out.println("Element No" + counter + ": " + name.substring(counter));
        }
    }

Answer 2

import java.util.Scanner;

public class Apples {

public static void main(String[] args) {

    Scanner userInput = new Scanner(System.in);
    String name = userInput.nextLine();

    int arrayLength = name.length();
    int temp = 1;
    String ArrayName[] = new String [arrayLength];

    for(int counter = 0; counter < arrayLength; counter++){

        ArrayName[counter] = name.substring(counter, name.length()-name.length()+temp);// HAD TO ADD THIS TO GET IT WORKING
        temp++;

System.out.println("Element No" + counter + ": " + ArrayName[counter]);

    }

Answer 3

您需要使用String的toCharArray()方法。如果在String上调用此方法，它将完全按照您的需要返回chars数组：

import java.util.Scanner;

public class Apples {

  public static void main(String[] args) {

    Scanner userInput = new Scanner(System.in);
    String name = userInput.nextLine();
    char[] nameArray = name.toCharArray();

    for(int counter = 0; counter < nameArray.length; counter++){
        System.out.println("Element No" + counter + ": " + nameArray[counter]);
    }
  }
}

查看上面链接的文档，查看其工作原理的完整说明以及可以在String对象上调用的其他方法。

如何将用户输入字符串作为单个字符数组？

3 个答案: