variables-methods

[Warren]

how can i use, in a method, the variable (not only the type and the name but its corresponding value also) i have used in a previous method? (both/all methods being in the same class).

[ShoeNinja]

All variables in Java are passed by value. So if you pass a variable to a method that changes the value, the variable still exists in its original state.

Code:

public class Thingie{

	public Thingie(){
	}
	
	public int changeValue(int i){
		return i + 7;
	}
	
	public static void main(String[] args){
		Thingie foo = new Thingie();
		int start = 10;
		
		//this will print 10
		System.out.println(start);
		
		//this will print 17
		System.out.println(foo.changeValue(start));
		
		//this will still print 10
		System.out.println(start);
	
	}


}

Hopefully this helps.