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Object-Oriented Programming (OOP) Quiz

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Questions and Answers

What will be printed when the following code is executed? out.println("hello Wold");

helo Wold

No output

hello World

hello Wold (correct)

What is the purpose of the following code snippet? public 5

Invoke a method named 5

This code will cause a compilation error (correct)

Define a method named 5

Create a variable with value 5

What is the significance of the following code? 

It is a valid Java syntax for a conditional statement

It is a valid Java syntax for declaring a class

It represents a mathematical operation

It is an invalid Java syntax for a conditional statement (correct)

What will be the output of the following code? 

The output cannot be determined without additional context Signup and view all the answers

What type of error is likely to occur in the following code:  public 

Syntax error due to incorrect use of keywords Signup and view all the answers

Which of the following best describes the 'Write once run anywhere' feature of Java?

Java apps can run on any system without modifications Signup and view all the answers

What is a variable in Java?

A name associated with a value that can be changed Signup and view all the answers

What is a rule for naming a variable in Java?

Variable names cannot contain white spaces or special characters Signup and view all the answers

What is the purpose of 'continue' and 'break' statements in Java?

To skip the current iteration and start the next iteration of a loop Signup and view all the answers

Why is learning Java important?

Java has 'Write once run anywhere' feature and is widely used Signup and view all the answers