In the previous article, we have discussed about Java Program to Convert Hectare to Square Meter and Square Meter to Hectare

In this article we will see how to convert Hectare to Square Mile and Square Mile to Hectare by using Java programming language.

## Java Program to Convert Hectare to Square Mile and Square Mile to Hectare

Before jumping into the program let’s know the relationship between Hectare and Square Mile and how we can convert Hectare to Square Mile and vice versa.

Generally Hectare and Square Mile are used as unit in case of field/land length measurement.

1 Hectare = 0.00386102 Square Mile 1 Square Mile = 258.999 Hectare

Formula to convert Hectare to Square Mile.

Square Mile = Hectare * 0.00386102

Formula to convert Square Mile to Hectare.

Hectare = Square Mile * 258.999

Let’s see different ways to convert Hectare to Square Mile and Square Mile to Hectare.

### Method-1: Java Program to Convert Hectare to Square Mile and Square Mile to Hectare By Using Static Input Value

**Approach:**

- Declare Hectare and Square Mile value.
- Then convert Hectare to Square Mile and Square Mile to Hectare by using the formula.
- Print result.

**Program:**

import java.util.*; public class Main { public static void main(String args[]) { //Scanner class object created Scanner sc=new Scanner(System.in); //value of square mile declared double squaremile = 1; //value of hectare declared double hectare = 1; //converting Hectare to square mile double sm = hectare * 0.00386102; //converting square mile to Hectare double h = squaremile * 258.999; //printing result System.out.println("Value of "+hectare+" hectare in square mile: "+ sm); System.out.println("Value of "+squaremile+" square mile in hectare: "+ h); } }

Output: Value of 1.0 hectare in square mile: 0.00386102 Value of 1.0 square mile in hectare: 258.999

### Method-2: Java Program to Convert Hectare to Square Mile and Square Mile to Hectare By Using User Input Value

**Approach:**

- Take user input of Hectare and Square Mile value.
- Then convert Hectare to Square Mile and Square Mile to Hectare by using the formula.
- Print result.

**Program:**

import java.util.*; public class Main { public static void main(String args[]) { //Scanner class object created Scanner sc=new Scanner(System.in); //Taking the value input of double variable squaremile System.out.println("Enter value of square mile: "); double squaremile = sc.nextDouble(); //Taking the value input of double variable hectare System.out.println("Enter value of hectare: "); double hectare = sc.nextDouble(); //converting Hectare to square mile double sm = hectare * 0.00386102; //converting square mile to Hectare double h = squaremile * 258.999; //printing result System.out.println("Value of "+hectare+" hectare in square mile: "+ sm); System.out.println("Value of "+squaremile+" square mile in hectare: "+ h); } }

Output: Enter value of square mile: 20 Enter value of hectare: 2000 Value of 2000.0 hectare in square mile: 7.722040000000001 Value of 20.0 square mile in hectare: 5179.9800000000005

### Method-3: Java Program to Convert Hectare to Square Meter and Square Meter to Hectare By Using User Defined Method

**Approach:**

- Take user input of Hectare and Square Mile value.
- Call a user defined method by passing Hectare and Square Mile value as parameter.
- Inside method convert Hectare to Square Mile and Square Mile to Hectare by using the formula.
- Print result.

**Program:**

import java.util.*; public class Main { public static void main(String args[]) { //Scanner class object created Scanner sc=new Scanner(System.in); //Taking the value input of double variable squaremile System.out.println("Enter value of square mile: "); double squaremile = sc.nextDouble(); //Taking the value input of double variable hectare System.out.println("Enter value of hectare: "); double hectare = sc.nextDouble(); //calling user defined method convert() convert(squaremile, hectare); } //convert() method to convert square mileto hectare and vice versa public static void convert(double squaremile, double hectare) { //converting Hectare to square mile double sm = hectare * 0.00386102; //converting square mile to Hectare double h = squaremile * 258.999; //printing result System.out.println("Value of "+hectare+" hectare in square mile: "+ sm); System.out.println("Value of "+squaremile+" square mile in hectare: "+ h); } }

Output: Enter value of square mile: 2 Enter value of hectare: 200 Value of 200.0 hectare in square mile: 0.772204 Value of 2.0 square mile in hectare: 517.998

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