当用户输入他们想要选择的选项时，我的 Java 代码没有执行打印语句。为什么它不起作用，我该如何解决？

Question

我正在创建一个游戏，即使用户输入了有效答案，我希望 Java 运行的代码也没有运行，我不确定如何解决这个问题。

我尝试为变量创建一个键盘语句，并在公共类之后单独尝试一个静态字符串变量名称，但是当我最初没有时它却给我错误。

下面是我的原始代码：

                public static void carMethod (Scanner keyboard) 
    { 
                System.out. println ("Now, what is it that you decide to do?"); 
                System.out.println ("Here are your options:"); 
        System.out.println (); 
        System.out.println (); 

        System.out.println ("(A.) Go up to the car and see if anyone’s inside.");  
        
        System.out.println ("It’s weird enough that a car is in your area anyway"); 
        
        System.out.println (); 
        System.out.println ("OR"); 
        System.out.println (); 
        
        System.out.println ("(B.) Ignore it. It’s obviously none of your business."); 
        
        System.out.println ("So, what’s it going to be?"); 
        
        System.out.println ("A or B?"); 
        System.out.println (); 

        String carSelection=keyboard.nextLine(); 
        
        if (carSelection == "A" || carSelection == "a") { 

            System.out.println ("You peep into the passenger's side’s windows and don’t notice much"); 
    
            System.out.println ("other than used soda cans and chip bags scattered across the floor."); 
            
            System.out.println ("You also notice that the driver’s sides’s windows are completely open");
            
            System.out.println ("and the keys are casually sitting on top of the driver’s seat, waiting to be taken."); 
            
            System.out.println ("What do you plan on doing?"); 
            
            TextAdventure.searchMethod (keyboard); //note that this is a seperate method and does not have anything to do with the problem 
        } 
        
        if (carSelection == "B" || carSelection == "b") { 

            System.out.println ("Well my friend…"); 
            
            System.out.println ("...you let the car be and continue on with your day"); 
            
            System.out.println ("and nothing eventful ever happens to you again."); 

            System.out.println ("THE END"); 
            
        } 
} 

任何帮助将不胜感激！谢谢。