Introduction To Java: Hello World

What is JAVA?

• Programming language

• Games

• Script

• Interface

public class HelloWorld {

  public static void main(String[] args) {

   }

}

What is the output?

• HelloWorld

• Hello World

• Error message

• No output

Java programs have at least one X and one main() X. What is X?

• Class and compiler

• compiler and method

• class and method

• compiler and output

System.out.print("Two...");

    System.out.println("One...");

What is the output?

• Two...

  One...

• One...Two...

• One...Two

• Two...One...

Which is the right symbol for comment?

• ||

• \\

• //

• **

Which one is the incorrect line of code?

• public class Monkey{}

• public static void main[String() args]{}

• String monkey=" monkey has 2 legs);

• System.out.println("Monkey is cute");

What is the purpose of compiling process?

• Get the output

• Print the output

• Run the code

• Catches the mistake

Javac is one of the way to?

• compile

• print

• terminal

• file

What is the right command for compile class Song.java?

• java Song.java

• Javac song.java

• javac Song.java

• Java Song.java

What is this code for?

• method

• compiler

• class

• output