I'm learning java,currently a beginner.I was trying to use method parameters but this unexpected error has popped up

public class MyClass {
    public static void main(String[] args){

        //A method is a block of code which only runs when it is called
        sayHello(name:"Raj",age:20);

    }
    //method should be defined in the class

    public static void sayHello(String name, int age){
        System.out.println("Hello!");
    }
}

This code is returning folowwing errors for line 7:
‘)’ expected
‘;’ expected
‘not a statement’

I had expected the code to run as is should but I can’t seem to identify the error.

>Solution :

in java there is no named- but positional-parameters only

so this is invalid:

sayHello(name:"Raj",age:20);

do instead:

sayHello("Raj", 20);