Java Quiz Results

Score: 19 of 25

76% Correct:

Question 1:

What is a correct syntax to output "Hello World" in Java?

System.out.println("Hello World"); Your answer

echo("Hello World");

print ("Hello World");

Console.WriteLine("Hello World");

Question 2:

Java is short for "JavaScript".

False Your answer

True

Question 3:

How do you insert COMMENTS in Java code?

// This is a comment Your answer

/* This is a comment

# This is a comment

Question 4:

Which data type is used to create a variable that should store text?

String Your answer

myString

Txt

string

Question 5:

How do you create a variable with the numeric value 5?

int x = 5; Your answer

float x = 5;

x = 5;

num x = 5

Question 6:

How do you create a variable with the floating number 2.8?

float x = 2.8f; Your answer

byte x = 2.8f

x = 2.8f;

int x = 2.8f;

Question 7:

Which method can be used to find the length of a string?

getLength() Your answer

getSize()

len()

length() Correct answer

Question 8:

Which operator is used to add together two values?

The + sign Your answer

The * sign

The & sign

Question 9:

The value of a string variable can be surrounded by single quotes.

True Your answer

False Correct answer

Question 10:

Which method can be used to return a string in upper case letters?

toUpperCase() Your answer

upperCase()

tuc()

touppercase()

Question 11:

Which operator can be used to compare two values?

== Your answer

Question 12:

To declare an array in Java, define the variable type with:

[] Your answer

{}

()

Question 13:

Array indexes start with:

0 Your answer

Question 14:

How do you create a method in Java?

methodName() Your answer

methodName.

methodName[]

(methodName)

Question 15:

How do you call a method in Java?

methodName(); Your answer

methodName;

methodName[];

(methodName);

Question 16:

Which keyword is used to create a class in Java?

class Your answer

class()

className

MyClass

Question 17:

What is the correct way to create an object called myObj of MyClass?

new myObj = MyClass(); Your answer

class MyClass = new myObj();

class myObj = new MyClass();

MyClass myObj = new MyClass(); Correct answer

Question 18:

In Java, it is possible to inherit attributes and methods from one class to another.

False Your answer

True Correct answer

Question 19:

Which method can be used to find the highest value of x and y?

Math.maximum(x,y) Your answer

Math.maxNum(x,y)

Math.max(x,y) Correct answer

Math.largest(x,y)

Question 20:

Which operator is used to multiply numbers?

* Your answer

Question 21:

Which keyword is used to import a package from the Java API library?

package Your answer

import Correct answer

getlib

lib

Question 22:

How do you start writing an if statement in Java?

if (x > y) Your answer

if x > y then:

if x > y:

Question 23:

How do you start writing a while loop in Java?

while (x > y) Your answer

while x > y:

while x > y {

x > y while {

Question 24:

Which keyword is used to return a value inside a method?

return Your answer

get

break

void

Question 25:

Which statement is used to stop a loop?

break Your answer

return

exit

stop

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