Java Basics Quiz for CH/PT Students

What does System.out.println() do?

• Takes user input

• Outputs text to the console

• Ends a program

• None of the above

Which keyword is used to define a class in Java?

• class

• define

• struct

• object

What is the purpose of the public keyword in Java?

• It hides the method or class from other classes.

• It allows the method or class to be accessed from outside.

• It specifies that the method is private.

• None of the above.

Which of the following is a correct way to declare a variable in Java?

• int 1x = 10;

• int x = 10;

• integer x = 10;

• num x = 10;

Which data type is used to store a single character in Java?

• char

• String

• int

• boolean

What will be the value of the variable z after executing the code below? int x = 5, y = 10; int z = x + y;

• 5

• 10

• 15

• 50

What will be the result of the following code? int a = 10, b = 3; System.out.println(a % b);

• 1

• 3

• 10

• 0

Which operator is used to increment a value by 1 in Java?

• --

• ++

• +=

• **

What does the != operator do in Java?

• Checks if two values are equal.

• Checks if two values are not equal.

• Assigns a value to a variable.

• Negates a Boolean value.

Variables in Java must start with a letter or an underscore.

• TRUE

• FALSE