如何使字符串比较不区分大小写？ [英] How to make a string compare non case sensitive?

问题描述

我正在尝试根据您的答案为其中一个程序编写代码。我想这样做，以便一些变量不区分大小写。例如，如果我的变量 x 等于我我希望它也等于 我。这可能吗？

I am trying to write a code for one of those programs that responds according to your answers. I want to make it so that some of the variables are not case sensitive. For example if my variable x is equal to "Me" I want it to also equal "me". Is that possible?

这是我到目前为止的代码：

Here is my code so far:

import java.util.Scanner;

class Tutorial {
    public static void main (String args[]){
        System.out.println("Who goes there?");
        Scanner N = new Scanner(System.in);
        String name = N.next();
        if (name.equals("me") || name.equals("Me")){
                System.out.println("Well, good for you smartass.");
                System.exit(1);
        }else System.out.printf("Nice to meet you, %s.%n", name);   
        System.out.print("How are you doing?");
        Scanner d1 = new Scanner(System.in);
        String doing = d1.next();
        switch(doing){
        case "good": System.out.println("that is nice to hear.");
        case "Well": System.out.println("that is nice to hear.");
        case "bad" : System.out.println("That's ruff mate.");
        case "Awesome" : System.out.println("Nice");
        case "Terrible" : System.out.println("Sucks for you");

        }
    }
}

我不喜欢我不想为每个答案制作2个案例，其中一个是大写，另一个是小写。

I don't want to have to make 2 cases for each answer where one is uppercase and the other is lower case.

稍微偏离主题问题。如何关闭扫描仪的资源泄漏？

Slightly off topic question. How do I close the resource leaks for the scanner?

推荐答案

值得一提 字符串＃toLowerCase ：

name.toLowerCase().equals("me");

或者只需使用 String #equalsIgnoreCase ：

Or simply use String#equalsIgnoreCase:

name.equalsIgnoreCase("me");

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