calculator which operates on points

Created by: massg

Point_Calculator/Point.java

+import java.lang.Math; 
+
+public class Point {
+	private double x;
+	private double y;
+	Point()
+	{
+		this.x = 0;
+		this.y = 0;
+	}
+	Point(double a, double b)
+	{
+		this.x = a;
+		this.y = b;
+	}
+	public void setX(double a)
+	{
+		this.x=a;
+	}
+	public void setY(double b) 
+	{
+		this.y=b;
+	}
+	public double getX() 
+	{
+		return this.x;
+	}
+	public double  getY() 
+	{
+		return this.y;
+	}
+	public void print() 
+	{
+		System.out.println("("+this.x+","+this.y+")");
+	}
+	public String toString() 
+	{
+		return "("+this.x+","+this.y+")";
+	}
+	public String equLine(Point p) 
+	{
+		double c = this.y-slope(p)*this.x;
+		return "y = "+slope(p)+"x + "+c;
+	}
+	public boolean isOrigin() 
+	{
+		if(this.x==0 && this.y==0) 
+		{
+			return true;
+		}
+		else
+		{
+			return false;
+		}
+	}
+	public int whichQuadrant() 
+	{
+		if(this.x>0 && this.y>0) {
+			return 1;
+		}
+		else if(this.x<0 && this.y>0) {
+			return 2;
+		}
+		else if(this.x<0 && this.y<0) {
+			return 3;
+		}
+		else if(this.x>0 && this.y<0) {
+			return 4;
+		}
+		else {
+			return 0;
+		}
+	}
+	public Point xProj()
+	{
+		Point xp;
+		xp = new Point(this.x,0);
+		return xp;
+	}
+	public Point yProj() 
+	{
+		Point xp;
+		xp = new Point(0,this.y);
+		return xp;
+	}
+	public Point xRefl() 
+	{
+		Point xp;
+		xp = new Point(this.x,-this.y);
+		return xp;
+	}
+	public Point yRefl() 
+	{
+		Point xp;
+		xp = new Point(-this.x,this.y);
+		return xp;
+	}
+	public Point scalarMult(double c) 
+	{
+		Point sp;
+		sp = new Point(c*this.x,c*this.y);
+		return sp;
+	}
+	public Point sumPoint(Point p) 
+	{
+		Point sp;
+		sp = new Point (this.x+p.x,this.y+p.y);
+		return sp;
+	}
+	public double slope(Point p) 
+	{
+		return (double)(this.y-p.y)/(this.x-p.x);
+	}
+	public double distanceM(Point p)
+	{
+		return absolute(this.x-p.x)+absolute(this.y-p.y);  
+	}
+	public double distanceE(Point p)
+	{
+		return Math.sqrt(Math.pow(this.x-p.x,2)+Math.pow(this.y-p.y,2));
+	}
+	private static double absolute(double n) {
+		if (n<0) {
+			return -1*n;
+		}
+		else 
+			return n;
+	}
+	
+}

Point_Calculator/PointCalculator.java

+/* POINT CALCULATOR
+   This calculator performs some operations on points.For eg., you can add two points, find the slope..
+   
+   While entering a point in calculator follow this format : (x,y)
+   where x,y are integer values
+*/
+import java.awt.*;
+import javax.swing.*;
+import java.awt.event.*;
+
+public class PointCalculator extends JFrame implements ActionListener {
+	JTextField tfield;
+
+	int z = 0,a = 0,b = 0,x = 0,y = 0 ;
+	char ch;
+	Point temp1 = new Point();
+	Point temp2 = new Point();
+	Point result = new Point();
+	double scl; 
+		
+	JButton b1, b2, b3, b4, b5, b6, b7, b8, b9, zero, clr, plus, mul, eq, dot, addSub, 
+			edist, mdist, slope, quad, xproj, yproj, xref, yref, obrac, cbrac, comma , equl;
+
+	Container cont;
+
+	JPanel textPanel, buttonpanel;
+
+	PointCalculator() {
+		cont = getContentPane();
+		cont.setLayout(new BorderLayout());
+		JPanel textpanel = new JPanel();
+		tfield = new JTextField(35);
+		tfield.setHorizontalAlignment(SwingConstants.RIGHT);
+		tfield.addKeyListener(new KeyAdapter() {
+			public void keyTyped(KeyEvent keyevent) {
+				char k = keyevent.getKeyChar();
+				if (k>='0'&&k<='9') {
+				} else {
+					keyevent.consume();
+				}
+			}
+		});
+		textpanel.add(tfield);
+		buttonpanel = new JPanel();
+		buttonpanel.setLayout(new GridLayout(8, 3, 3, 3));
+		
+		obrac = new JButton("(");
+		buttonpanel.add(obrac);
+		obrac.addActionListener(this);
+
+		cbrac = new JButton(")");
+		buttonpanel.add(cbrac);
+		cbrac.addActionListener(this);
+		
+		b1 = new JButton("1");
+		buttonpanel.add(b1);
+		b1.addActionListener(this);
+		
+		b2 = new JButton("2");
+		buttonpanel.add(b2);
+		b2.addActionListener(this);
+		
+		b3 = new JButton("3");
+		buttonpanel.add(b3);
+		b3.addActionListener(this);
+
+		b4 = new JButton("4");
+		buttonpanel.add(b4);
+		b4.addActionListener(this);
+		
+		b5 = new JButton("5");
+		buttonpanel.add(b5);
+		b5.addActionListener(this);
+		
+		b6 = new JButton("6");
+		buttonpanel.add(b6);
+		b6.addActionListener(this);
+
+		b7 = new JButton("7");
+		buttonpanel.add(b7);
+		b7.addActionListener(this);
+		
+		b8 = new JButton("8");
+		buttonpanel.add(b8);
+		b8.addActionListener(this);
+		
+		b9 = new JButton("9");
+		buttonpanel.add(b9);
+		b9.addActionListener(this);
+
+		zero = new JButton("0");
+		buttonpanel.add(zero);
+		zero.addActionListener(this);
+		
+		comma = new JButton(",");
+		buttonpanel.add(comma);
+		comma.addActionListener(this);
+		
+		dot = new JButton(".");
+		buttonpanel.add(dot);
+		dot.addActionListener(this);
+		
+		addSub = new JButton("-");
+		buttonpanel.add(addSub);
+		addSub.addActionListener(this);
+		
+		eq = new JButton("=");
+		buttonpanel.add(eq);
+		eq.addActionListener(this);
+
+		quad =  new JButton("Quadrant");
+		buttonpanel.add(quad);
+		quad.addActionListener(this);
+		
+		plus = new JButton("Add");
+		buttonpanel.add(plus);
+		plus.addActionListener(this);
+
+		mul = new JButton("Sca. Mul");
+		buttonpanel.add(mul);
+		mul.addActionListener(this);
+
+				
+		edist = new JButton("Eucl. Dist");
+		buttonpanel.add(edist);
+		edist.addActionListener(this);
+
+		mdist = new JButton("Manh. Dist");
+		buttonpanel.add(mdist);
+		mdist.addActionListener(this);
+		
+		slope = new JButton("Slope");
+		buttonpanel.add(slope);
+		slope.addActionListener(this);
+		
+		xproj = new JButton("X Proj");
+		buttonpanel.add(xproj);
+		xproj.addActionListener(this);
+		
+		yproj =  new JButton("Y Proj");
+		buttonpanel.add(yproj);
+		yproj.addActionListener(this);
+		
+		xref = new JButton("X Refl");
+		buttonpanel.add(xref);
+		xref.addActionListener(this);
+		
+		yref =  new JButton("Y Refl");
+		buttonpanel.add(yref);
+		yref.addActionListener(this);
+		
+		equl =  new JButton("Equ. line");
+		buttonpanel.add(equl);
+		equl.addActionListener(this);
+		
+		clr = new JButton("AC");
+		buttonpanel.add(clr);
+		clr.addActionListener(this);
+		
+		cont.add("Center", buttonpanel);
+		cont.add("North", textpanel);
+		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+	}
+	
+	public void actionPerformed(ActionEvent e) {
+		try {
+		String s = e.getActionCommand();
+		if (s.equals("1")) {
+			
+			if (z == 0) {
+				tfield.setText(tfield.getText() + "1");
+			} else {
+				tfield.setText("");
+				tfield.setText(tfield.getText() + "1");
+				z = 0;
+			}
+		}
+		if (s.equals("2")) {
+			
+			if (z == 0) {
+				tfield.setText(tfield.getText() + "2");
+			} else {
+				tfield.setText("");
+				tfield.setText(tfield.getText() + "2");
+				z = 0;
+			}
+		}
+		if (s.equals("3")) {
+			
+			if (z == 0) {
+				tfield.setText(tfield.getText() + "3");
+			} else {
+				tfield.setText("");
+				tfield.setText(tfield.getText() + "3");
+				z = 0;
+			}
+		}
+		if (s.equals("4")) {
+			
+			if (z == 0) {
+				tfield.setText(tfield.getText() + "4");
+			} else {
+				tfield.setText("");
+				tfield.setText(tfield.getText() + "4");
+				z = 0;
+			}
+		}
+		if (s.equals("5")) {
+			
+			if (z == 0) {
+				tfield.setText(tfield.getText() + "5");
+			} else {
+				tfield.setText("");
+				tfield.setText(tfield.getText() + "5");
+				z = 0;
+			}
+		}
+		if (s.equals("6")) {
+			
+			if (z == 0) {
+				tfield.setText(tfield.getText() + "6");
+			} else {
+				tfield.setText("");
+				tfield.setText(tfield.getText() + "6");
+				z = 0;
+			}
+		}
+		if (s.equals("7")) {
+			
+			if (z == 0) {
+				tfield.setText(tfield.getText() + "7");
+			} else {
+				tfield.setText("");
+				tfield.setText(tfield.getText() + "7");
+				z = 0;
+			}
+		}
+		if (s.equals("8")) {
+			
+			if (z == 0) {
+				tfield.setText(tfield.getText() + "8");
+			} else {
+				tfield.setText("");
+				tfield.setText(tfield.getText() + "8");
+				z = 0;
+			}
+		}
+		if (s.equals("9")) {
+			
+			if (z == 0) {
+				tfield.setText(tfield.getText() + "9");
+			} else {
+				tfield.setText("");
+				tfield.setText(tfield.getText() + "9");
+				z = 0;
+			}
+		}
+		if (s.equals("0")) {
+			if (z == 0) {
+				tfield.setText(tfield.getText() + "0");
+			} else {
+				tfield.setText("");
+				tfield.setText(tfield.getText() + "0");
+				z = 0;
+			}
+		}
+		if (s.equals("(")) {
+			if (z == 0) {
+					tfield.setText("" + "(");
+				} else {
+					tfield.setText("");
+					tfield.setText(tfield.getText() + "(");
+					z = 0;
+				}
+				b=1;
+			}
+		
+		if (s.equals(")")) {
+			if(b==2) {
+				if (z == 0) {
+					tfield.setText(tfield.getText() + ")");
+				} else {
+					tfield.setText("");
+					tfield.setText(tfield.getText() + ")");
+					z = 0;
+				}
+				b=0;
+			}
+		}
+		if (s.equals(",")) {
+			if(b==1) {
+				if (z == 0) {
+					tfield.setText(tfield.getText() + ",");
+				} else {
+					tfield.setText("");
+					tfield.setText(tfield.getText() + ",");
+					z = 0;
+				}
+				b=2;
+			}
+		}
+		if (s.equals("AC")) {
+			tfield.setText("");
+			z = 0;
+			y = 0;
+			x = 0;
+			a = 0;
+			b = 0;
+		}
+		if (s.equals("-")) {
+			if (x == 0 || x ==1) {
+				tfield.setText(tfield.getText()+"-" );
+				x++;
+			} else {
+				tfield.setText(tfield.getText());
+			}
+		}
+		if (s.equals(".")) {
+			if (y == 0 || y ==1) {
+				tfield.setText(tfield.getText() + ".");
+				y++;
+			} else {
+				tfield.setText(tfield.getText());
+			}
+		}
+		if (s.equals("Add")) {
+			if (tfield.getText().equals("")) {
+				tfield.setText("");
+				temp1.setX(0);
+				temp1.setY(0);
+				ch = '+';
+			} else {
+				String aa = tfield.getText();
+				tfield.setText("");
+				
+				String[] cord = aa.substring(1, aa.length()-1).split(",");
+				temp1.setX(Double.parseDouble(cord[0]));
+				temp1.setY(Double.parseDouble(cord[1]));
+				ch = '+';
+				y = 0;
+				x = 0;
+			}
+			tfield.requestFocus();
+		}
+		if (s.equals("Slope")) {
+			if (tfield.getText().equals("")) {
+				tfield.setText("");
+				temp1.setX(0);
+				temp1.setY(0);
+				ch = 's';
+			} else {
+				String aa = tfield.getText();
+				tfield.setText("");
+				String[] cord = aa.substring(1, aa.length()-1).split(",");
+				temp1.setX(Double.parseDouble(cord[0]));
+				temp1.setY(Double.parseDouble(cord[1]));
+				ch = 's';
+				y = 0;
+				x = 0;
+			}
+		}
+		if (s.equals("Equ. line")) {
+			if (tfield.getText().equals("")) {
+				tfield.setText("");
+				temp1.setX(0);
+				temp1.setY(0);
+				ch = 'l';
+			} else {
+				String aa = tfield.getText();
+				tfield.setText("");
+				String[] cord = aa.substring(1, aa.length()-1).split(",");
+				temp1.setX(Double.parseDouble(cord[0]));
+				temp1.setY(Double.parseDouble(cord[1]));
+				ch = 'l';
+				y = 0;
+				x = 0;
+			}
+		}
+		if (s.equals("Manh. Dist")) {
+			if (tfield.getText().equals("")) {
+				tfield.setText("");
+				temp1.setX(0);
+				temp1.setY(0);
+				ch = 'm';
+			} else {
+				String aa = tfield.getText();
+				tfield.setText("");
+				String[] cord = aa.substring(1, aa.length()-1).split(",");
+				temp1.setX(Double.parseDouble(cord[0]));
+				temp1.setY(Double.parseDouble(cord[1]));
+				ch = 'm';
+				y = 0;
+				x = 0;
+			}
+			
+		}
+		if (s.equals("Eucl. Dist")) {
+			if (tfield.getText().equals("")) {
+				tfield.setText("");
+				temp1.setX(0);
+				temp1.setY(0);
+				ch = 'e';
+			} else {
+				String aa = tfield.getText();
+				tfield.setText("");
+				String[] cord = aa.substring(1, aa.length()-1).split(",");
+				temp1.setX(Double.parseDouble(cord[0]));
+				temp1.setY(Double.parseDouble(cord[1]));
+				ch = 'e';
+				y = 0;
+				x = 0;
+			}
+			
+		}
+		if (s.equals("Sca. Mul")) {
+			if (tfield.getText().equals("")) {
+				tfield.setText("");
+				temp1.setX(0);
+				temp1.setY(0);
+				ch = '*';
+			} else {
+				String aa = tfield.getText();
+				tfield.setText("");
+				String[] cord = aa.substring(1, aa.length()-1).split(",");
+				temp1.setX(Double.parseDouble(cord[0]));
+				temp1.setY(Double.parseDouble(cord[1]));
+				x = 0;
+				y = 0;
+				ch = '*';
+			}
+		}
+		if (s.equals("Quadrant")) {
+			if (tfield.getText().equals("")) {
+				tfield.setText("");
+				temp1.setX(0);
+				temp1.setY(0);
+			} else {
+				String aa = tfield.getText();
+				String[] cord = aa.substring(1, aa.length()-1).split(",");
+				temp1.setX(Double.parseDouble(cord[0]));
+				temp1.setY(Double.parseDouble(cord[1]));
+				tfield.setText("Q"+temp1.whichQuadrant());
+			}
+		}
+		if (s.equals("X Proj")) {
+			if (tfield.getText().equals("")) {
+				tfield.setText("");
+				temp1.setX(0);
+				temp1.setY(0);
+			} else {
+				String aa = tfield.getText();
+				String[] cord = aa.substring(1, aa.length()-1).split(",");
+				temp1.setX(Double.parseDouble(cord[0]));
+				temp1.setY(Double.parseDouble(cord[1]));
+				tfield.setText(temp1.xProj().toString());
+			}
+		}
+		if (s.equals("Y Proj")) {
+			if (tfield.getText().equals("")) {
+				tfield.setText("");
+				temp1.setX(0);
+				temp1.setY(0);
+			} else {
+				String aa = tfield.getText();
+				String[] cord = aa.substring(1, aa.length()-1).split(",");
+				temp1.setX(Double.parseDouble(cord[0]));
+				temp1.setY(Double.parseDouble(cord[1]));
+				tfield.setText(temp1.yProj().toString());
+			}
+		}
+		if (s.equals("X Refl")) {
+			if (tfield.getText().equals("")) {
+				tfield.setText("");
+				temp1.setX(0);
+				temp1.setY(0);
+			} else {
+				String aa = tfield.getText();
+				String[] cord = aa.substring(1, aa.length()-1).split(",");
+				temp1.setX(Double.parseDouble(cord[0]));
+				temp1.setY(Double.parseDouble(cord[1]));
+				tfield.setText(temp1.xRefl().toString());
+			}
+		}
+		if (s.equals("Y Refl")) {
+			if (tfield.getText().equals("")) {
+				tfield.setText("");
+				temp1.setX(0);
+				temp1.setY(0);
+			} else {
+				String aa = tfield.getText();
+				String[] cord = aa.substring(1, aa.length()-1).split(",");
+				temp1.setX(Double.parseDouble(cord[0]));
+				temp1.setY(Double.parseDouble(cord[1]));
+				tfield.setText(temp1.yRefl().toString());
+			}
+		}
+		if (s.equals("=")) {
+			if (tfield.getText().equals("")) {
+				tfield.setText("");
+			} else {
+				if(ch == '+') {
+					String aa = tfield.getText();
+					String[] cord = aa.substring(1, aa.length()-1).split(",");
+					temp2.setX(Double.parseDouble(cord[0]));
+					temp2.setY(Double.parseDouble(cord[1]));
+					tfield.setText(temp1.sumPoint(temp2).toString());
+					z = 1;
+				}
+				if(ch == '*') {
+					scl = Double.parseDouble(tfield.getText());
+					tfield.setText(temp1.scalarMult(scl).toString());
+					z = 1;
+				}
+				if(ch == 'm') {
+					String aa = tfield.getText();
+					String[] cord = aa.substring(1, aa.length()-1).split(",");
+					temp2.setX(Double.parseDouble(cord[0]));
+					temp2.setY(Double.parseDouble(cord[1]));
+					tfield.setText(""+temp1.distanceM(temp2));
+				}
+				if(ch == 'e') {
+					String aa = tfield.getText();
+					String[] cord = aa.substring(1, aa.length()-1).split(",");
+					temp2.setX(Double.parseDouble(cord[0]));
+					temp2.setY(Double.parseDouble(cord[1]));
+					tfield.setText(""+temp1.distanceE(temp2));
+				}
+				if(ch == 's') {
+					String aa = tfield.getText();
+					String[] cord = aa.substring(1, aa.length()-1).split(",");
+					temp2.setX(Double.parseDouble(cord[0]));
+					temp2.setY(Double.parseDouble(cord[1]));
+					tfield.setText(""+temp1.slope(temp2));
+				}
+				if(ch == 'l') {
+					String aa = tfield.getText();
+					String[] cord = aa.substring(1, aa.length()-1).split(",");
+					temp2.setX(Double.parseDouble(cord[0]));
+					temp2.setY(Double.parseDouble(cord[1]));
+					tfield.setText(""+temp1.equLine(temp2));
+				}
+			}
+		}
+		tfield.requestFocus();
+		}
+		catch(Exception e1) {
+			System.out.println("Enter the point in the Correct format (a,b)");
+			System.out.println(e1);
+		}
+	}
+
+	
+	public static void main(String[] args) {
+		
+		try {
+			UIManager.setLookAndFeel("com.sun.java.swing.plaf.gtk.GTKLookAndFeel"); 
+		} 
+		catch(Exception e) {
+			System.out.println(e);
+		}
+		
+		PointCalculator f = new PointCalculator();
+		f.setTitle("Point Calculator");
+		f.pack();
+		f.setVisible(true);
+		
+
+	}
+
+}