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FIT1051 Programming fundamentals in java - S1 2026
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The program below uses an interface. What is its output when run?
The program below uses an interface. What is its output when run?
Which of the following is an incorrect description of access modifiers in Java?
The program below uses an interface. What is its output when run?
Given the code snippet below, what would be the output after the code executes?
Which of the following cannot be added to a subclass?
What is the default behavior of the toString() method in the Object class?
Given the following code, what will be the output?
interface Playable { void play();}
class Guitar implements Playable { public void play() { System.out.println("Playing guitar"); }}
class Piano implements Playable { public void play() { System.out.println("Playing piano"); }}
public class Test { public static void main(String[] args) { Playable p = new Guitar(); p.play(); p = new Piano(); p.play(); }}
What is the primary purpose of using interfaces in Java?
What would happen if a class implements two interfaces, and both interfaces have a method with the same name and signature, but with different return type? For example:
public interface Car { void speed(); } public interface Car2 { int speed(); }