"javac is not recognized as an internal or external command" error message that is appearing on your Windows or Linux machine?

The error message "javac is not recognized as an internal or external command" typically means that the Java compiler (javac) is not properly installed or configured on your system, or the system cannot find its location.

Here are some steps you can take to fix this issue in Windows:

Check if Java is installed: Open the Command Prompt and type "java -version" to see if Java is installed. If you see the version number, then Java is installed on your system. If not, you need to install Java.

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@Override annotation in Java? Best practices

Hi, Today we will see @Override annotation in Java is used to indicate that a method in a subclass is intended to override a method in its superclass. Using this annotation is a coding best practice because it helps to catch errors early in the development process by ensuring that the overridden method has the correct method signature, including the method name, return type, and parameter types.

Here is an example:

Suppose we have a superclass Animal with a method makeSound(), and we want to create a subclass Cat that overrides this method to make a different sound. We can define the Cat class like this:

public class Cat extends Animal {
    @Override
    public void makeSound() {
        System.out.println("Meow");
    }
}

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