Question

Draw a turtle like that in JAVA. It should not take any user input. we assign the parameters values.

4. Create a recursive function spiral_square(size, space) that takes the length of the longest square (size) and the distance between each leg of the spiral (space) as parameters. • Hint: Think about how the parameters change at each recursive step. Should either parameter stay the same? What's the base case? • Test your functions by drawing two different squares. Now you're ready to tackle the assessment. To speed up testing, set the turtle speed to be 0. None of the turtle programs should take user input!

Answer 1

Solution :

I have used turtle programming in java. In java, Turtle is a feature used to draw using functions.

YOU NEED TO DOWNLOAD JTURTLE IN YOUR COMPUTER AND ADD IT TO YOUR LIBRARY.

(You can see that i have added it in my library in JavaApplication18 package).

new Turtle() : Creates and returns a new turtle object

fd(amount) : Moves the turtle forward by the specified amount

right(angle) : Turns the turtle clockwise

Screenshot & Output:

JavaApplication 18 - NetBeans IDE 8.2 File Edit View Navigate Source Refactor Run Debug Profile Team 90 <default config> T Q- Search (Ctrl+1) Tools Window Help R . - Details.java x JavaApplication18.java x - X X Services Files AppletProject Demo Java Application 15 Java Application 16 Java Application 17 Java Application 18 Source Packages Test Packages Libraries # jturtle-0.1.1.jar - JDK 1.8 (Default) Test Libraries javaprog mydemo Project Project 1 Registration JavaApplication 15.java x JavaApplication 16.java x Java Application 17.java x Demo.java x Source History CE..07291 O W package javaapplication18; import java.awt.*; import ch.aplu.turtle. Turtle; public class Java Application18 public static Turtle turtle = new Turtle(); public static void spiral_square(int size, int space) { turtle.setColor (Color.RED); turtle.setPenColor (Color.BLUE); if(size == 0){ return; É - - else{ turtle.fd (size); turtle.right (90); size = size-space; spiral_square (size, space); - public static void main(String[] args) { spiral_square (100,5); Java Application 18 (run) running... X L I NS 1 Type here to search OB 9 1:27 00:06 06-02-2020 ADA 3 ENG

Code : -

package javaapplication18;
import java.awt.*;
import ch.aplu.turtle.Turtle;
public class JavaApplication18{
public static Turtle turtle = new Turtle();
public static void spiral_square(int size,int space){
turtle.setColor(Color.RED);
turtle.setPenColor(Color.BLUE);
if(size == 0){
return ;
}
else{
turtle.fd(size);
turtle.right(90);
size = size-space;
spiral_square(size,space);
}
}
public static void main(String[] args) {
spiral_square(100,5);
}
}

----x----x-----x-----

Please give your valuable feedback and also rate my efforts.

Thank You