17. Method Overriding

public class Bank {
	int getIR() {
		return 0;
	}
}



class Bank_ABC extends Bank {
	
	/* same return data type
	 * same name
	 * same number of argument --> method overriding
	 */
	int getIR() { 
		return 6;
	}
	
	/* different arguments 
	 * use in same class
	 * data type can be changed --> method overloading
	 */
}

public class Test {

	public static void main(String[] args) {
		Bank abc = new Bank_ABC();
		Bank cde = new Bank();
		
		System.out.println(abc.getIR());
		System.out.println(cde.getIR());
	}

}