java - 如何在 java 中只打印字符串的特定部分？

Question

我正在编写一个程序，使用字符串的特定部分写一封信。

这是我目前所拥有的(我只是一个初学者)

import java.util.Scanner;

public class AutoInsurance {

    public static void main (String[] args)
    {
        Scanner scan=new Scanner (System.in);
        System.out.print("Enter Name:");
        String Name;
        Name=scan.nextLine();
        System.out.print("Enter Street Address:");
        String Address;
        Address=scan.nextLine();
        System.out.print("Enter city, state, and zip code:");
        String Location;
        Location=scan.nextLine();
        System.out.println();
        System.out.println();
        System.out.println("Dear "+Name+",");
        System.out.println(" You have been selected to receive this offer of auto insurance from");
        System.out.println("Allspam Insurance Company! Drivers from "++" saved an average "); // I just want it to print the city here, between ++

        // I will finish coding once I figure this out, but I'm stumped
    }
}

Answer 1

你在这里能做的最好的事情是用逗号分割你的地址字符串，并从结果数组中获取第一个值。

看看this question有关在 Java 中拆分字符串的更多详细信息。

我建议在您的代码中使用以下内容:

String[] AddressParts = Address.split(",");
String City = AddressParts[0];
System.out.println("Allspam Insurance Company! Drivers from "+City+" saved an average ");

干杯!