Mastering Java Basics

What is the correct way to declare a variable in Java?

• var variableName int;

• float variableName = 0;

• string variableName;

• int variableName;

How do you print a string to the console in Java?

• console.log('Your string here');

• print('Your string here');

• System.out.println("Your string here");

• echo 'Your string here';

Which of the following is a valid Java data type?

• int

• float

• boolean

• string

What symbol is used to end a statement in Java?

• ;

• !

• :

• .

How do you create a single-line comment in Java?

• # This is a comment

• /* This is a comment */

• // This is a single-line comment

• -- This is a comment

What is the output of System.out.println(5 + 3);?

• 6

• 8

• 10

• 9

What keyword is used to define a class in Java?

• define

• object

• class

• function

What is the result of System.out.println("Hello" + " World");?

• HelloWorld

• Hello, World

• Hello World!

• Hello World