programming-examples/java/_Basics/Program to Calculate Rect Perimeter (Java).java

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2019-11-15 12:59:38 +01:00
/*
Calculate Rectangle Perimeter using Java Example
This Calculate Rectangle Perimeter using Java Example shows how to calculate
perimeter of Rectangle using it's length and width.
*/
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class CalculateRectPerimeter
{
public static void main(String[] args)
{
int width = 0;
int length = 0;
try
{
//read the length from console
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
System.out.println("Please enter length of a rectangle");
length = Integer.parseInt(br.readLine());
//read the width from console
System.out.println("Please enter width of a rectangle");
width = Integer.parseInt(br.readLine());
}
//if invalid value was entered
catch(NumberFormatException ne)
{
System.out.println("Invalid value" + ne);
System.exit(0);
}
catch(IOException ioe)
{
System.out.println("IO Error :" + ioe);
System.exit(0);
}
/*
* Perimeter of a rectangle is
* 2 * (length + width)
*/
int perimeter = 2 * (length + width);
System.out.println("Perimeter of a rectangle is " + perimeter);
}
}
/*
Output of Calculate Rectangle Perimeter using Java Example would be
Please enter length of a rectangle
10
Please enter width of a rectangle
15
Perimeter of a rectangle is 50
*/