How do I implement a function in Java?

How do I implement a function in Java?

To implement a function in Java, you define it with a return type, name, and parameters. For example:

public int add(int a, int b) {
    return a + b;
}

What if I want to implement a function without parameters?

You can create a function without parameters by simply omitting them in the parentheses. For example:

public void greet() {
    System.out.println("Hello, World!");
}

Can I have a function that returns a string?

Yes, you can create a function that returns a string like this:

public String getGreeting() {
    return "Hello, Java!";
}

How do I call a function in Java?

To call a function, you simply use its name followed by parentheses. For example:

int sum = add(5, 10);
System.out.println(sum);