Sunlo

GRAPHICAL USER INTERFACE : CANVAS CLASS: import javax.swing.*; import java.awt.*; import java.util.List; import java.util.*; /**  * Canvas is a class to allow for simple graphical drawing on a canvas.  * This is a modification of the general purpose Canvas, specially made for  * the BlueJ "shapes" example.   *  * @author: Bruce Quig  * @author: Michael Kšlling (mik)  *  * @version 2011.07.31  */ public class Canvas {     // Note: The implementation of this class (specifically the handling of     // shape identity and colors) is slightly more complex than necessary. This     // is done on purpose to keep the interface and instance fields of the     // shape objects in this project clean and simple for educational purposes.     private static Canvas canvasSingleton;     /**      * Factory method to get t...

DATE PROGRAM Date Class: public class Date { private int month; private int year; private int day; public int getMonth() { return month; } public void setMonth(int month) { this.month = month; } public int getYear() { return year; } public void setYear(int year) { this.year = year; } public int getDay() { return day; } public void setDay(int day) { this.day = day; } public void displayDate() { System.out.print(getMonth()+ "/" +getDay()+ "/" +getYear() ) ; } } Date Test Class: import java.util.Scanner; public class DateTest { public static void main (String args[]) { Scanner in=new Scanner(System.in); System.out.println("Enter the day"); int d=in.nextInt(); System.out.println("Enter the month "); int m=in.nextInt(); System.out.println("Enter the year "); int y=in.nextInt(); Date date=new Date(); date.setDay(d); date.setMonth(m); date...

Student Progress The First Class is Student Class:-   public class Student { private string first_name; //private String last_name; private string father_name; private string Address; private string chem_marks; private String phy_marks; private String bio_marks; private String math_marks; private String eng_marks; public Student(string first_name,String father_name , String Address , String chem_makrs , String phy_marks , String bio_marks , String math_marks , String eng_marks ) { super(); this.first_name = first_name; this.father_name= father_name; this.Address = Address; this.chem_marks= chem_marks; this.phy_marks= phy_marks; this.bio_marks= bio_marks; this.math_marks= math_marks; this.eng_marks= eng_marks; } public String getFirst_name() { return first_name; } public void setFirst_name(String first_name) { this.first_name = first_name; } /*public String getLast_name() { return last_na...

The First Class is Discount which extends the Grocery Bill Class :- public class Discount extends GroceryBill{ boolean preffered = true ; private double d=0 ; GroceryBill gb = new GroceryBill() ; public Discount(Employee e ,boolean preffered) { } // disc count amount percent ; public void DiscountCount() { int a = 0 ; for(Item i : al) { if(i.getdiscount()>0) { a++ ; } } System.out.println("------------------------------------"); System.out.println("Total Discount Items : " + a); // System.out.println("------------------------------------"); } public void DiscountAmount() { for(Item i : al) { d+=(i.getprice()*i.getdiscount()) ; } System.out.println("------------------------------------"); System.out.printf("Total Discount Amount : %.2f", d); System.out.println(""); } public void DiscountPer() { double p=0 ,...

How to Make Basic Java programs: Java is one of the best programming language to make GUI and many other departmental software for making computer handling software . Through java programming you can make games , calculators , ticket Machine and related software because it deals with some wide range of built in functions which every programming language do exist.. Here below is the Code through which you can easily make some basic four programs : Even or Odd : import java.util.Scanner; public class EvenorOdd { public static void main(String Args[]) { int x; System.out.println( "Enter the number" ); Scanner input = new Scanner(System.in); x=input.nextInt(); if (x % 2 ==0) System.out.println( "The number is even" ); else System.out.println( "The number is odd" ); } } Radius :