如何将用户输入的字符串作为单个字符的数组？

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一个元素。

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

进口java.util.Scanner;

public class苹果{

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

您需要使用字符串的 toCharArray() 方法。如果您在字符串上调用此方法，它将 return 一个 chars 的数组，完全符合您的需要：

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以查看其工作原理以及您可以在 String 对象上调用的其他方法的完整说明。

如何将用户输入的字符串作为单个字符的数组？

How to get a user-input string as an array of individual characters?

java

arrays

string

input

character