OOPs, Classes, Methods

RECTANGLE DIMENSION CHANGE - INSTANCEOF OPERATOR

Sample Input and Output :
Enter the length of the rectangle
5
Enter the width of the rectangle
6
Rectangle Dimension
Length:5
Width:6
Area of the Rectangle:30
Enter the new dimension
2
Rectangle Dimension
Length:10
Width:12
Area of the Rectangle:120

CODE:

public class Rectangle {
   
private int length;
private int width;
private int area;
private int newlen;
private int newwid;
private int newarea;
public Rectangle(int l, int w) {
this.length=l;
this.width=w;
}
public int area() {
area=length*width;
return area;
}
public void display(){
System.out.println("Rectangle Dimension");
System.out.println("Length:"+length);
System.out.println("Width:"+width);
}
public int getLength() {
return length;
}
public int getWidth() {
return width;
}
Rectangle dimensionChange(int newDimension){
newlen=length*newDimension;
newwid=width*newDimension;
newarea=newlen*newwid;
return new Rectangle(newlen,newwid);
}

}

import java.util.Scanner;


public class Main {
    public static void main(String[] args) {
   
    Scanner sc = new Scanner(System.in);
    System.out.println("Enter the length of the rectangle");
    int len=sc.nextInt();
    System.out.println("Enter the width of the rectangle");
    int wid=sc.nextInt();
    Rectangle r1 = new Rectangle(len,wid);
    r1.display();
    int area=r1.area();
    System.out.println("Area of the Rectangle:"+area);
    System.out.println("Enter the new dimension");
    int newDimension=sc.nextInt();
    //here, r1 in LHS is the returned rectangle object from the method
    r1=r1.dimensionChange(newDimension);
    if(r1 instanceof Rectangle==true) {
    r1.display();
    area=r1.area();
    System.out.println("Area of the Rectangle:"+area);
    }
    }
}
   
   
    




Comments

Post a Comment

Popular posts from this blog

  Primitive Wrappers | java.lang | java.util CUSTOMER ADDRESS USING STRING BUILDER Sample Input & Output: Enter Address Details : Enter Line 1 : 152, South Block Enter Line 2 : Raisina Hill Enter City : New Delhi Enter Country : India Enter Zip Code : 110011 Address Details : 152, South Block, Raisina Hill, New Delhi - 110011 India CODE: // fill your code here public class Address {      private String line1; private String line2; private String city; private String country; private int zipCode; public String getLine1() { return line1; } public void setLine1(String line1) { this.line1 = line1; } public String getLine2() { return line2; } public void setLine2(String line2) { this.line2 = line2; } public String getCity() { return city; } public void setCity(String city) { this.city = city; } public String getCountry() { return country; } public void setCountry(String country) { this.country = country...
Read more
Collections: ARRAYLIST - INTRODUCTION Sample Input and Output 1: Enter the username 1 John Do you want to continue?(y/n) y Enter the username 2 Joe Do you want to continue?(y/n) n The Names entered are: John Joe CODE: import java.util.ArrayList; import java.util.Scanner; public class Main {     public static void main(String args[]) { String user; Scanner sc = new Scanner(System.in); ArrayList<String> al = new ArrayList<String>(); int i = 1; do { System.out.println("Enter the username "+i); al.add(sc.nextLine()); System.out.println("Do you want to continue?(y/n)"); user = sc.nextLine(); i++; }while(user.equalsIgnoreCase("y")); System.out.println("The Names entered are:"); for(String a:al) { System.out.println(a); } } }
Read more
Collections: TREEMAP To assist Event organizers, you need to develop a console application that shows the number of tickets sold in a particular price category. Sample Input and Output : [All Texts in bold corresponds to the input and rest are output] Enter the number of events: 3 Enter event details in CSV(Customer Name,Ticket Price,No of Seats Booked) Emily ,100,5 Natalie ,200,10 Grace ,100,3 Ticket Price    Tickets Booked 100                 8 200                 10 CODE: //package com.mycom.collections.map; import java.util.Scanner; import java.util.Set; import java.util.TreeMap; public class Main {     public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println("Enter the number of events:"); int num = Integer.parseInt(sc.nextLine()); TreeMap<I...
Read more