Quiz 4: Java Syntax

Insert the missing part of the code below to output "Hello World".

public class MyClass {

public static void main(String[] args) {

______.___.________("Hello World");

}

}

(a)  

Comments in Java are written with special characters. Insert the missing parts:

___This is a single-line comment

___This is a multi-line comment___

(a)  

Create a variable named carName and assign the value Volvo to it.

____________ _________ = ___________;

(a)  

Create a variable named maxSpeed and assign the value 120 to it.

____ ___________ = _____;

(a)  

Display the sum of 5 + 10, using two variables: x and y.

----- ----- = ---- ;

int y = 10;

System.out.println(x + y);

(a)  

Create a variable called z, assign x + y to it, and display the result.

int x = 5;

int y = 10;

--- -- = x + y;

System.out.println();

(a)  

Fill in the missing parts to create three variables of the same type, using a comma-separated list:

--- x = 5-- y = 6-- z = 50;

System.out.println(x + y + z);

(a)  

Add the correct data type for the following variables:

---- myNum = 9;

--myFloatNum = 8.99f;

--myLetter = 'A';

--myBool = false;

--myText = "Hello World";

(a)  

byte, short, int, long, float, double, boolean and char are called:

(a)   data types.

Type casting - convert the following double type (myDouble) to an int type:

double myDouble = 9.78d;

int myInt = (a)   myDouble;