java return void

In Java, the void keyword is used to indicate that a method does not return a value.

Here's an example of a method that does not return a value:

public void printHello() {
    System.out.println("Hello");
}

This method, printHello(), has a return type of void, which means it does not return a value. Instead, it simply prints "Hello" to the console.

You can call a void method like any other method, but you cannot use the return value in an expression or assignment. For example, the following code is invalid:

int x = printHello();  // Invalid, cannot assign the return value of a void method to a variable

To use a method that does not return a value, you can simply call the method and any desired side effects will occur. For example, to print "Hello" to the console, you can call the printHello() method like this:

printHello();  // Outputs: Hello

It's important to note that a method with a void return type cannot return a value using the return statement. If you try to use the return statement in a void method, it must be followed by a semicolon, like this:

public void printHello() {
    System.out.println("Hello");
    return;  // Return statement with no value
}

This is the equivalent of an empty return statement.