字符串和||语句

Question

你能用下面的代码帮助我找出我所遗漏的内容吗？我正在使用Eclipse。

Scanner scanner = new Scanner(System.in);
    String input = scanner.nextLine();
    {
    if (input.equalsIgnoreCase(("front door")  || ("front") || ("basement") || ("basement entrance")))
        if (input.equalsIgnoreCase(("front door")  || ("front"))        
            System.out.println("Maggie went to the side of the home and open the basement door.  As the door opened, she could smell the dust from inside.");       
        else    
            if ((input.equalsIgnoreCase("basement") || ("basement entrance")))  
                System.out.println("Maggie walks up the steps and slowly opens the front door.");               
    else    
        System.out.println("That is not a correct answer");

Answer 1

这不是你使用逻辑或运算符的方式，你必须做类似

的事情

if (input.equalsIgnoreCase("front door") || input.equalsIgnoreCase("front") ||
    input.equalsIgnoreCase("basement") || input.equalsIgnoreCase("basement entrance")) {
    ...
}

Answer 2

我认为有一些错误： 1. If-else逻辑：

  

a）if（input.equalsIgnoreCase（（“front door”）||（“front”）||   （“地下室”）|| （“地下室入口”）））           if（input.equalsIgnoreCase（（“front door”）||（“front”））

你在这里是什么意思？第二，如果是多余的。    b）

  

否则
              if（（input.equalsIgnoreCase（“basement”）||（“basement entrance”）））

此部分无法访问，因为如果覆盖它。

1. if（condition）中的语法错误。

假设它看起来应该是llke

String input = scanner.nextLine();
        {
            input = input.toLowerCase();

        if (input.equals("front door")  || input.equals("front"))             
                System.out.println("Maggie went to the side of the home and open the basement door.  As the door opened, she could smell the dust from inside.");       
        else if (input.equals("basement") || input.equals("basement entrance"))  
                    System.out.println("Maggie walks up the steps and slowly opens the front door.");               
        else    
            System.out.println("That is not a correct answer");