Assume we have this method defined in a class: public double getBalance(int accountNumber), and assume that methods below are defined in the same class.

Question: are the following method allowed or not allowed?

public double getBalance(int socialSecurityNumber)

public String getBalance(int accountNumber)

public double getBalance(String accountName)

public double getBalance(boolean accountStatus)

What is wrong with the following code? The method body is omitted deliberately to save space.

public class Test {

public static void calcScore (int x){

}

public static void calcScore (int y){

}

}

Given the two method definitions:

public static double m (double x, double y) // version 1

public static double m (int x, double y) // version 2

, please tell which method is invoked for :

a) double z = m(4, 5); // version ___ is invoked

b) double z = m(4, 5.4); // version ___ is invoked

c) double z = m(4.5, 5.4); // version ___ is invoked