java - java中如何将字符串转换为ascii值？

Question

我有新的任务，由于我是 JAVA 新手，我不知道如何让它工作，我经常搜索这个网站，但所有建议的解决方案都不适合我，或者我没有正确使用它们，如果有人帮助我，我将不胜感激...... 下面的代码是我能找到的最简单的解决方案，但仍然不起作用......

我想从人们那里获取姓名之类的输入并将其更改为数字(int)...它说不可能从字符串转换为 int ...!!

 package loveindex;
import java.util.Scanner;
//import java.math.BigInteger;

public class LoveIndex {

private static Scanner scan;

public static void main(String[] args) {
    scan = new Scanner(System.in);

    System.out.println("Testing Scanner, write something: ");
    String testi = scan.nextLine();
    System.out.println(testi);
    System.out.println("Testing Scanner, write something: ");
    String testi2 = scan.nextLine();
    System.out.println(testi2);

    int ascii = (int) testi;
    int ascii = (int) testi2;
  }

}

Answer 1

你可以试试这个:

public static void main(String[] args) {

    Scanner scan = new Scanner(System.in);

    System.out.println("Testing Scanner, write something: ");
    String testi = scan.nextLine();
    char[] ascii1 = testi.toCharArray();

    for(char ch:ascii1){
        System.out.println((int)ch+"  ");
    }


    System.out.println("Testing Scanner, write something: ");
    String testi2 = scan.nextLine();
    char[] ascii2 = testi2.toCharArray();

    for(char ch:ascii2){
        System.out.println((int)ch+"  ");
    }

  scan.close();
}