Question

Java program written with one file not two ....

Make a LandTract class with the following fields:

• length - an int containing the tract's length
• width - an int containing the tract's width

The class should also have the following methods :

• area - returns an int representing the tract's area
• equals - takes another LandTract object as a parameter and returns a boolean saying
whether or not the two tracts have the same dimensions (This applies regardless of whether the dimensions match up. i.e., if the length of the first is the same as the width of the other and vice versa, that counts as having equal dimensions.)
• toString - returns a String with details about the LandTract object in the format:
LandTract object with length 30 and width 40
(If, for example, the LandTract object had a length of 30 and a width of 40.)

Write a separate program that asks the user to enter the dimensions for the two tracts of
land (in the order length of the first, width of the first, length of the second, width of the second). The program should print the output of two tracts' toString methods followed by a sentence stating whether or not the tracts have equal dimensions. (If the tracts have the same dimensions, print, "The two tracts have the same size." Otherwise, print, "The two tracts do not have the same size.") Print all three statements on separate lines.

****Results have to look like this****

Enter·length·of·first·land·tract:10↵
Enter·width·of·first·land·tract:55↵
Enter·length·of·second·land·tract:36↵
Enter·width·of·second·land·tract:75↵
LandTract·with·length·10,·width·55,·and·area·550↵
LandTract·with·length·36,·width·75,·and·area·2700↵
The·two·tracts·do·not·have·the·same·size.↵

Answer 1

public class LandTract {

   public int length;
   public int width;

   public int area() {
       return length * width;

   }

   public LandTract(int length, int width) {
       this.length = length;
       this.width = width;
   }

   @Override
   public String toString() {
       return "LandTract [length=" + length + ", width=" + width + "]";
   }

   @Override
   public int hashCode() {
       final int prime = 31;
       int result = 1;
       result = prime * result + length;
       result = prime * result + width;
       return result;
   }

   @Override
   public boolean equals(Object obj) {
       if (this == obj)
           return true;
       if (obj == null)
           return false;
       if (getClass() != obj.getClass())
           return false;
       LandTract other = (LandTract) obj;
       if (length != other.length)
           return false;
       if (width != other.width)
           return false;
       return true;
   }

}

--------------------------------------------------------------------------------------

import java.util.Scanner;

public class LandTractTest {

   public static void main(String[] args) {

       Scanner scanner = new Scanner(System.in);
       System.out.println("enter the length for landtract1");
       int length1 = scanner.nextInt();
       System.out.println("enter the width for landtract1");
       int width1 = scanner.nextInt();
       System.out.println("enter the length for landtract2");
       int length2 = scanner.nextInt();
       System.out.println("enter the width for landtract2");
       int width2 = scanner.nextInt();

       LandTract tract1 = new LandTract(length1, width1);

       LandTract tract2 = new LandTract(length2, width2);

       tract1.toString();
       tract2.toString();
       int area1 = tract1.area();
       System.out.println("the area of landtract one is " + area1);
       int area2 = tract1.area();
       System.out.println("the area of landtract one is " + area1);

       boolean flag = tract1.equals(tract2);
       if (flag == true) {
           System.out.println("both are same");
       } else
           System.out.println("both are not same");
   }

}

output

enter the length for landtract1
25
enter the width for landtract1
36
enter the length for landtract2
50
enter the width for landtract2
12
the area of landtract one is 900
the area of landtract one is 900
both are not same