Java 1

1. What happens here?

public class Main

{

public static void main(String[] args) {

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

}

}

• Prints out the number 1

• Error

• Prints out hello world

• Prints out Hello World

Which Data type stores a decimal?

• Integer

• String

• double

• char

Which Data type stores a Word?

• Integer

• String

• double

• char

Which Data type stores a whole number?

• Integer

• String

• double

• char

Which Data type stores a single 'letter'?

• Integer

• String

• double

• char

What happens in this code ?

public class Main

{

public static void main(String[] args) {

int x = 20;

int y = 18;

if (x > y) {

System.out.println("x is greater than y");

}

else

System.out.println("y is greater than x");

}

}

• Error

• Prints out

  x is greater than y

• Prints out

  y is greater than x

• nothing at all

What does this code do??

public class Main

{

public void Gas(){

System.out.println("Coach Hallman");

}

public void Car(){

}

public static void main(String[] args) {

Main x = new Main();

x.Car();

}

}

• error

• nothing at all

• Prints out

  Coach Hallman

• Prints out

  Fast cars

What does this code do??

public class Main

{

public void Gas(){

System.out.println("Coach Hallman");

}

public void Car(){

}

public static void main(String[] args) {

Main x = new Main();

x.Gas();

}

}

• error

• nothing at all

• Prints out

  Coach Hallman

• Prints out

  Fast cars

What happens in this loop

public class Main

{

public static void main(String[] args) {

for(int x = 0; x< 10; x ++ ){

System.out.println(x);

}

}

}

• error

• prints out

  1,2,3,4,5,6,7,8,9,10

• prints out

  0,1,2,3,4,5,6,7,8,9

• Prints out

  Coach Hallman

Draw out the 5 Step method and how it works ??