Java Programming

Question 1

When you place a class into the World, this can be referred to as _____

Accepted Answer

an object, an instance of a class

Question 2

Which of the following statements about constructors are correct?

Accepted Answer

A constructor gets executed only when an object is created, A constructor should not have a return type, A constructor is used to initialize an object's state, A constructor has the same name as the class

Question 3

Which statements are correct for the following line of code: public class Crab extends Animal?

Accepted Answer

Animal is the superclass of Crab, Crab is the subclass of Animal

Question 4

What does this section of source code do?

Accepted Answer

Makes an object turn left if the left key is pressed

Question 5

When a subclass takes on the properties/methods of a parent class refers to the concept of ____

Accepted Answer

Inheritance

Question 6

What does the 'Compile' button do in Greenfoot?

Accepted Answer

Converts high-level source code into machine-readable code

Question 7

What is the name of the method in the following statement: public int getNumber()?

Accepted Answer

getNumber

Question 8

Which is the Java syntax for the following: if the number of worms left is equal to zero?

Accepted Answer

if (wormsLeft == 0) { statement; }

Question 9

When this method is invoked/called/run, what will it return?

Accepted Answer

The number of worms left as an integer data type

Question 10

What type of error will this section of source code produce?

Accepted Answer

Syntax

Question 11

What is missing from this section of source code?

Accepted Answer

Curly brace }

Java Programming

Questions 11

Java Programming

Questions 11