Javaeopardy

Data Types

100

Variables with this data type can store positive or negative whole numbers.

What is int?

200

Variables of this data type can store decimal numbers.

What is double?

300

Variables of this data type can store only one of two possible values at any given time.

What is boolean?

400

Each one of these "big ideas in Java" can also be a data type.

What is an object?

or

What is a class?

500

You do this when you convert one kind of data into another type of data.

What is casting?

Method Calls

100

public void getReady(){

     wakeUp();

     takeShower();

     getDressed();

     eatBreakfast();

     goToSchool();

}

When you getReady(), first you do this:

What is wakeUp?

200

public void getReady(){

     wakeUp();

     takeShower();

     getDressed();

     eatBreakfast();

     goToSchool();

}

When you getReady(), the last thing you do before you goToSchool() is this:

What is "eatBreakfast()"?

300

Buko is a cat.

buko.meow();

Buko does this when this code runs:

What is "meow"?

400

Buko is a cat.

     buko.color1 = "White";

     buko.color2 = "Black";

     buko.furPattern = "Tuxedo";

     System.out.println(buko.furPattern);

If the code above runs, this gets printed:

What is "Tuxedo"?

500

public String printName(String yourName){

     System.out.println(yourName);

}

you.printName();

When the code above runs, this is printed out:

What is (well, it depends, right?)?

Logic Operators

100

>

This operator is called:

What is "greater than"?

200

||

This operator is called:

What is "OR"?

300

==

This operator is called...

What is "equal to"?

400

!= 

This operator means...

What is "not equal to"?

500

&&

This operator means...

What is "AND"?

Arithmetic Operators

100

x = 10;

x *= 2;

What is the new value of x?

What is 20?

200

x = 7;

x = x + 5;

What is the new value of x?

What is 12?

300

x = 10;

x -= 5;

What is the new value of x?

What is 5?

400

x = 10;

y = 2;

x = x / y;

What is the new value of x?

What is 5?

500

x=10;

x++;

x--;

What is the final value of x?

What is 10?

Boolean Expressions and If Statements

100

This is the boolean value of:

1 > 3

What is "false"?

200

This is the boolean value of

"bob" = "bob"

What is "true"?

300

You do this when this code runs and Jack says "jump":

if(jump.says("jump")){

    jump();

}

What is "jump"?

400

You do this when this code runs and Jack does not say "jump":

if(!jack.says("jump")){

   jump();

}

What is "jump"?

500

If this code runs and it is not thundering or raining:

if(thundering){

     goInside();

}

else if(raining){

     putOnRaincoat();

}

else{

     keepPlaying();

}

What is "keep playing"?