# How to find perimeter of rhombus – Java Program to Find Perimeter of Rhombus

How to find perimeter of rhombus: In the previous article we have discussed Java Program to Find Area of Rhombus

## Program to Find Perimeter of Rhombus

How to find perimeter of a rhombus: Before jumping into the program directly, let’s first see how we calculate perimeter of rhombus.

Formula for Perimeter of Parallelogram : 4a

Where,

• a‘ represents side length of rhombus.
• Side length of rhombus are equal in nature.

Example:

Example- To find Perimeter of Rhombus

When length of each side of Rhombus = 4
Then Perimeter of square => Perimeter = 4*sideLength
=> Perimeter = 4*4
=> Perimeter = 16

Let’s see different ways to do it.

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### Method-1: Java Program to Find Perimeter of Rhombus By Using Static Value

How to find the perimeter of rhombus: Let’s see the program to understand it more clearly.

import java.util.*;

public class Main

{
public static void main(String args[])
{
//Side length of Rhombus declared
double sideLength= 4.5;
//finding perimeter
double  p=4*sideLength;

System.out.println("Perimeter of Rhombus : " + p);
}
}
Output:

Enter side length of Rhombus: 4.4
Perimeter of Rhombus : 17.6

### Method-2: Java Program to Find Perimeter of Rhombus By User Input Value

How to find the perimeter of a rhombus: Let’s see the program to understand it more clearly.

import java.util.*;

public class Main

{
public static void main(String args[])
{
//Scanner class object created
Scanner sc= new Scanner(System.in);
//Taking side length of rhombus as input from user
System.out.println("Enter side length of Rhombus:");
double sideLength= sc.nextDouble();
//finding perimeter
double  p=4*sideLength;

System.out.println("Perimeter of Rhombus : " + p);
}
}
Output:

Enter side length of Rhombus: 4.4
Perimeter of Rhombus : 17.6

### Method-3: Java Program to Find Perimeter of Rhombus By User Defined Method

Find the perimeter of a rhombus: Let’s see the program to understand it more clearly.

import java.util.*;

public class Main

{
public static void main(String args[])
{
//Scanner class object created
Scanner sc= new Scanner(System.in);
//Taking side length of rhombus as input from user
System.out.println("Enter side length of Rhombus:");
double sideLength= sc.nextDouble();
//findPerimeter() method called
findPerimeter(sideLength);
}

//user defined method
//findPerimeter() method to find perimeter of rhombus
public static void findPerimeter(double sideLength)
{
//finding perimeter
double  p=4*sideLength;

System.out.println("Perimeter of Rhombus : " + p);
}
}
Output:

Enter side length of Rhombus: 4.4
Perimeter of Rhombus : 17.6

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