public class Threads2 implements Runnable { public void run() { System.out.print

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Home Aptitude

Question
public class Threads2 implements Runnable { public void run() { System.out.println("run."); throw new RuntimeException("Problem"); Which among the following is true? } public static void main(String[] args) { Thread t = new Thread(new Threads2()); t.start(); System.out.println("End of method."); } }
Options
A. java.lang.RuntimeException: Problem
B. run. java.lang.RuntimeException: Problem
C. End of method. java.lang.RuntimeException: Problem
D. End of method. run. java.lang.RuntimeException: Problem

Correct Answer

End of method. run. java.lang.RuntimeException: Problem

Explanation

Only D can be true

6. public abstract class Shape { private int x; private int y; public abstract void draw(); public void setAnchor(int x, int y) { this.x = x; this.y = y; } } Which two classes use the Shape class correctly?
Options
A. public class Circle implements Shape { private int radius;
B. public abstract class Circle extends Shape { private int radius; }
C. public class Circle extends Shape { private int radius; public void draw();
D. None

7. public abstract class Shape { private int x; private int y; public abstract void draw(); public void setAnchor(int x, int y) { this.x = x; this.y = y; } } Which two classes use the Shape class correctly?
Options
A. public class Circle implements Shape { private int radius;
B. public abstract class Circle extends Shape { private int radius; }
C. public class Circle extends Shape { private int radius; public void draw();
D. None

8. X implements Y, Z Arguments: 1. X should be class 2. Y, Z should be interfaces
Options
A. Only 1 is true
B. Only 2 is true
C. Both 1 and 2 are true
D. None

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