Selenium WebDriver with Java - Basics to Advanced and Frameworks - Writing the First Executable Program in Java

This video tutorial covers the basics of printing output in Java using System.out.println and System.out.print. It explains the difference between these methods, focusing on how println adds a new line after printing. The tutorial also demonstrates how to comment out code in Java using double slashes (//) and introduces the concept of variables, specifically how to declare and print integer variables. The importance of specifying data types and the use of the static keyword are briefly mentioned.

What is the primary function of System.out.println in Java?

• To print output to the console

• To compile Java code

• To read input from the user

• To execute a Java program

How does System.out.print differ from System.out.println?

• System.out.println does not print anything

• System.out.print prints on the same line

• System.out.println prints on the same line

• System.out.print prints on a new line

What is the purpose of using double slashes (//) in Java code?

• To declare a variable

• To start a loop

• To comment out a line of code

• To end a program

What happens if you remove the comment slashes from a line of code?

• The code will be highlighted in green

• The code will throw an error if incorrect

• The code will execute without errors

• The code will be ignored

Why is it necessary to specify the data type when declaring a variable in Java?

• To ensure the variable stores the correct type of data

• To avoid syntax errors

• To improve code readability

• To allocate memory

What keyword is used to declare a variable as static in Java?

• final

• static

• public

• void

What will be the output if you print a variable declared as 'int a = 4;'?

• The output will be 'int a = 4;'

• The program will crash

• The output will be 'a'

• The output will be '4'