ICS practice Quiz 2 - Java

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2. What comes at the end of a command?

Semi-colon

Colon

Curly bracket / brace

Parentheses

every command ends with a semicolon

Explanation

every command ends with a semicolon

3. Which of the following are the basic drawing commands?

SetPenWidth(); forward(); backward(); right();

Forward(); backward(); setHeading(); setPostion();

Forward(); backward(); left(); right();

SetPenColor(); backward(); right(); forward();

The basic drawing commands are the actions that allow the user to move the pen in different directions and change its position. The commands "forward()" and "backward()" are used to move the pen forward or backward, while "left()" and "right()" are used to rotate the pen in the respective directions. These commands are essential for creating different shapes and patterns in a drawing.

Explanation

The basic drawing commands are the actions that allow the user to move the pen in different directions and change its position. The commands "forward()" and "backward()" are used to move the pen forward or backward, while "left()" and "right()" are used to rotate the pen in the respective directions. These commands are essential for creating different shapes and patterns in a drawing.

4. What will happen?
The turtle starts at it's original position. A setPosition command is used and nothing else.

The turtle will do nothing

The turtle will move to the new position

The turtle will draw a line to the new position

The turtle will always leave a mark when it moves unless you use penUp() and penDwn().

Explanation

The turtle will always leave a mark when it moves unless you use penUp() and penDwn().

5. What will happen?
for(int i=0; i<4; i++) { forward(50); right(90); }
setDisplayColor(Color.blue);

You will see a square with blue background.

You will see four squares on a blue background.

You will only see a blue background.

Nothing will happen.

Since setDisplayColor came after the loop (that created a square) it places a block of color over whatever was drawn beforehand. You need to place setDisplayColor first.

Explanation

Since setDisplayColor came after the loop (that created a square) it places a block of color over whatever was drawn beforehand. You need to place setDisplayColor first.