Dsquad

What keyword is used to create an object in Java?

• create

• new

• objectify

• instance

What does System.out.println("Hello, World!"); do?

• It prints 'Hello, World!' to the console.
• It deletes 'Hello, World!' from the console.
• It saves 'Hello, World!' to a file.
• It displays 'Hello, World!' in a popup window.

What does the 'int' keyword represent in Java?

• It defines a string variable.

• It represents an integer data type.

• It is used for floating-point numbers.

• It indicates a boolean value.

What is the purpose of the 'public' keyword in Java?

• It restricts access to the class.

• It allows access from any other class.

• It indicates a private variable.

• It is used for static methods only.

Which of these is NOT a valid Java identifier? (AKA variable name)

• _myVariable

• $javaRocks

• 2cool4Java

• • camelCaseIsLife

What does the 'void' keyword signify in a method declaration?

• It indicates that the method returns no value.

• It means the method will return an integer.

• It specifies that the method is private.

• It allows the method to return multiple values.

What is the function of the 'for' loop in Java?

• It creates an infinite loop.

• It defines a new class.

• It is used to declare variables.

• It executes a block of code a specific number of times.

What happens if you forget a semicolon (;) in Java?

• Java forgives you

• Your code runs but with a warning

• Compilation error, sadness follows

• It fixes itself magically

How many objects are created in this line? String str1 = new String("Java"); String str2 = "Java";

• 1

• 2

• 3

• 4

What is the output of boolean isJavaFun = true; System.out.println(isJavaFun);?

• Yes

• No

• true

• false