Help me print out a triangle

[Rob Stevens]

so here is my code, i have to draw an entire scene but i figure if someone can show me how to add a triangle so that it prints out WITH the code provided, then i will be able to continue from there:

 
import acm.graphics.*; // The graphics objects
import acm.program.*; // Provides program structure for the objects
import java.awt.*; // This gives us colors


public class car extends GraphicsProgram {
	/**
	 * magic ACM library stuff. When you call start, it calls run in your class.
	 * @param args
	 */
	public static void main(String[] args) {
	    new car().start(args);
	}
	/**
	 * Build the car and make it move
	 */
	public void run() {
	    body camero = new body();
	    // Move it 10 times 
	    for(int i = 0; i < 10; i++) {
	    	pause(1000);
	    	camero.move(20, 50);
	    }
	    
	}
	/**
	 * The body also has wheels
	 * @author clement
	 *
	 */
	class body {
		private GRect rect;
		private wheel rightWheel, leftWheel;
		/**
		 * Create a rectangle for the body and two wheels
		 */
		body() {
			rect = new GRect(100, 100, 100, 50);
			rect.setFilled(true);
		    rect.setColor(Color.RED);
		    add(rect);
		    rightWheel = new wheel(115,150);
		    leftWheel = new wheel(175,150);
		}
		/**
		 * move the body in the x and y direction
		 * @param xdir
		 * @param ydir
		 */
		void move(int xdir, int ydir) {
			rect.move(xdir, ydir);
			rightWheel.move(xdir, ydir);
			leftWheel.move(xdir, ydir);
		}
		
	}

	class wheel {
		private GOval circle;
		/**
		 * Create a wheel with x and y coordinates of the upper left corner
		 * @param xval
		 * @param yval
		 */
		wheel(int xval, int yval) {
			circle = new GOval(xval, yval, 20, 20);
			circle.setFilled(true);
		    circle.setColor(Color.BLUE); // We like blue wheels
		    add(circle);
		}
		/**
		 * Move the wheel in the given direction
		 * @param xdir
		 * @param ydir
		 */
		void move(int xdir, int ydir){
			circle.move(xdir, ydir);
		}
	}
}

   

[Darryl Burke]

Rob, welcome to the Ranch! Please BeForthrightWhenCrossPostingToOtherSites
http://www.javaprogrammingforums.com/object-oriented-programming/5763-help-me-draw-triangle.html

Any more?

[Rob Stevens]

Darryl Burke wrote:Rob, welcome to the Ranch! Please BeForthrightWhenCrossPostingToOtherSites
http://www.javaprogrammingforums.com/object-oriented-programming/5763-help-me-draw-triangle.html

Any more?

Rob Stevens
Greenhorn

Joined: Oct 26, 2010
Posts: 1


well so far ive had 2 replys to this post on this website and neither have not been helpful... 1 being a private message and then you. does this website receive help or criticism?

[Christophe Verré]

Hi Rob, Welcome to the ranch

Darryl's comment is not critism, but a reminder of one of our many rules. You're surely not aware of BeForthrightWhenCrossPostingToOtherSites, so please have a look at it. And don't forget the golden rule of the ranch : BeNice

[Christophe Verré]

Can you tell us what this ACM library is ?

[Rob Stevens]

Christophe Verré wrote:Can you tell us what this ACM library is ?

this was the link they gave me:

http://jtf.acm.org/acm.jar

i dont know exactly what it is but apparently it helps to animate the code

[Christophe Verré]

There's an example of triangle drawing here.

[Rob Stevens]

Christophe Verré wrote:There's an example of triangle drawing here.

thanks for that. what im trying to get is though is that i just want to be able to add code to my existing code and have it print out... weither it be a triangle or circle i dont care, i just need to understand how to add a shape to what i already have

[Christophe Verré]

Sorry Rob, I don't understand your problem. You've already made a body and wheels. So I can't understand why you cannot make other shapes as well. What is blocking you from progressing ?

[Rob Stevens]

Christophe Verré wrote:Sorry Rob, I don't understand your problem. You've already made a body and wheels. So I can't understand why you cannot make other shapes as well. What is blocking you from progressing ?

i didnt understand how to implement other shapes into that code. i finished it though. its not pretty but it runs:

  
/*
 * File: GFace.java
 * ----------------
 * This file defines a compound GFace class.
 */

import acm.program.*;
import acm.graphics.*;

import java.awt.*;




public class Gface extends GraphicsProgram {
	public static final double PHI = 1.618;
	/** Runs the program */
	public void run() {
		setSize (800, 800);
		Snowman frosty = new Snowman();
		Tree smallTree = new Tree();
		for(int i = 0; i < 10; i++) {
			pause(1000);
			frosty.move(20,50);
		}

	}
	class Tree{
		private Treetrunk trunk;
		private PineNeedles needles;

		public Tree(){
			trunk = new Treetrunk();
			needles = new PineNeedles();
		}
	}
	class Snowman {   
		private Snowbody body;
		private Face face;
		private Arms arms;

		public Snowman() {

			body = new Snowbody();
			face = new Face();
			arms = new Arms();

		}
		void move(int xdir, int ydir) {
			body.move(xdir, ydir);
			face.move(xdir, ydir);
			arms.move(xdir, ydir);
	}
	}
	class Treetrunk{
		private GRect trunk;

		Treetrunk(){
			trunk = new GRect(100, 200, 50, 100 / PHI);
			trunk.setFilled(true);
			trunk.setColor(Color.BLACK);
			add(trunk);
		}
	}

	class PineNeedles{
		private GPolygon treebottom, treemiddle, treetop;

		PineNeedles(){

			GPolygon treebottom = new GPolygon();
			treebottom.addEdge(127, 175);
			treebottom.addEdge(-80, 40);
			treebottom.addEdge(150, 0);
			treebottom.setFilled(true);
			treebottom.setColor(Color.GREEN);
			add(treebottom);


			GPolygon treemiddle = new GPolygon();
			treemiddle.addEdge(127, 150);
			treemiddle.addEdge(-80, 40);
			treemiddle.addEdge(150, 0);
			treemiddle.setFilled(true);
			treemiddle.setColor(Color.GREEN);
			add(treemiddle);

			GPolygon treetop = new GPolygon();
			treetop.addEdge(127, 125);
			treetop.addEdge(-80, 40);
			treetop.addEdge(150, 0);
			treetop.setFilled(true);
			treetop.setColor(Color.GREEN);
			add(treetop);
		}
	}

	class Arms{
		private GLine right_Bicept, left_Bicept, right_forarm, left_forarm;

		Arms(){
			right_Bicept = new GLine (300, 180, 280, 170);
			right_Bicept.setColor(Color.BLACK);
			add(right_Bicept);

			left_Bicept = new GLine (400, 179, 420, 170);
			left_Bicept.setColor(Color.BLACK);
			add(left_Bicept);



			right_forarm = new GLine (280, 170, 310, 150);
			right_forarm.setColor(Color.BLACK);
			add(right_forarm);

			left_forarm = new GLine (420, 170, 395, 150);
			left_forarm.setColor(Color.BLACK);
			add(left_forarm);
		}
		void move(int xdir, int ydir) {
			right_Bicept.move(xdir, ydir);
			left_Bicept.move(xdir, ydir);
			right_forarm.move(xdir, ydir);
			left_forarm.move(xdir, ydir);
		}
	}

	class Face{
		private GOval Right_Eye, Left_Eye;

		Face(){
			Right_Eye = new GOval (330, 120, 5, 5);
			Right_Eye.setFilled(true);
			Right_Eye.setColor(Color.BLACK);
			add(Right_Eye);

			Left_Eye = new GOval (360, 120, 5, 5);
			Left_Eye.setFilled(true);
			Left_Eye.setColor(Color.BLACK);
			add(Left_Eye);
		}
		void move(int xdir, int ydir) {
			Right_Eye.move(xdir, ydir);
			Left_Eye.move(xdir, ydir);
		}
	}

	class Snowbody {
		private GOval ovalbottom, ovalmiddle, ovaltop;


		Snowbody() {


			ovalbottom = new GOval(300, 170 + 50 / PHI, 100, 100 / PHI);
			ovalbottom.setFilled(true);
			ovalbottom.setColor(Color.LIGHT_GRAY);
			add(ovalbottom);

			ovalmiddle = new GOval (300, 120 + 50 / PHI, 100, 100 / PHI);
			ovalmiddle.setFilled(true);
			ovalmiddle.setColor(Color.LIGHT_GRAY);
			add(ovalmiddle);


			ovaltop = new GOval (300, 70 + 50 / PHI, 100, 100 / PHI);
			ovaltop.setFilled(true);
			ovaltop.setColor(Color.LIGHT_GRAY);
			add(ovaltop);
		}
		void move(int xdir, int ydir) {
			ovalbottom.move(xdir, ydir);
			ovalmiddle.move(xdir, ydir);
			ovaltop.move(xdir, ydir);
		}
	}




}



  

thanks for the help everyone