Venus AUEB Forum

Code: Select all

import acm.program.*;
public class lab {
	public lab (String name, int id) {
		studentName = name;
		studentID = id;
	}
	public String getName() {
		return studentName;
		}
	public int getID() {
		return studentID;
		}
	public void setCredits(double credits) {
		creditsEarned = credits;
		}
	public double getCredits() {
		return creditsEarned;
	}
	public void setPaidUp(boolean flag) {
		paidUp = flag;
	}
	public boolean isPaidUp() {
		return paidUp;
	}
	public String toString() {
		return studentName + " (#" +studentID + ")";
	}
	public static final double CREDITS_TO_GRADUATE = 32.0;
	private String studentName;
	private int studentID;
	private double creditsEarned;
	private boolean paidUp;
}

Code: Select all

import acm.program.*;
public class lab extends Program {
	
	private int topLeftX;
	private int topLeftY;
	private int bottomRightX;
	private int bottomRightY;
	
	public lab(int tlx, int tly, int brx, int bry) {
		topLeftX = tlx;
		topLeftY = tly;
		bottomRightX = brx;
		bottomRightY = bry;
	}
	
	public int surface() {
		int width, height;
		width = bottomRightX - topLeftX;
		height = topLeftY - bottomRightY;
		return width*height;
	}
	
	public void display() {
		println("Dimensions are: Top-Left corner -> (" + topLeftX + "," + topLeftY +")" + " and Bottom-Right corner -> (" + bottomRightX + "," + bottomRightY + ")");
	}
}

Code: Select all

import acm.program.*;

public class testStrings extends ConsoleProgram {

	public void run() {

		String s=new String();

		String color1 = "RED";
		println ("Color1 = " + color1);

   		String color2 = new String ("RED");
   		println ("Color2 = " + color2);

   		String color3 = new String ("Red");
   		println ("Color3 = " + color3);

   		if (color1.equals(color2))println ("color1=color2");
   		else println ("color1<>color2");

   		if (color1 == color2)println ("color1=color2");
   		else println ("color1<>color2");

   		if (color2.equalsIgnoreCase(color3))println ("color2=color3");
   		else println ("color2<>color3");

   		s=color3.substring(1,2);
   		println (s);

   		int x=color3.indexOf(s);
   		println (x);

   		x=color2.indexOf(s);
   		println (x);

   		s=String.valueOf(x);
   		s=s.concat("@");
   		println (s);
   	}
}