Why is the keyword static used while declaring methods?

Answer 1

You want some functionality of class but you don't need to make object, it will cost you unnecessary memory and in bigger programs slower execution, that's when you use static

Answer 2

Because they belong to a class rather than an object.

Example:

public Class Program{

public static int getOne (){
return 1;
}

public int getTwo() {
return 2;
}

public static void main(String[] args) {

getOne(); //doesn't need an object because it's static

Program x = new Program();

x.getTwo(); // we needed to create object x because method wasn't static

}

}

Answer 3

You use static keyword simply to declare a method to be static.

When you define objects using constructors, the objects will automatically inherit the methods from their class, but the objects will not inherit static methods.