# Java - Calculate Median

Here is the Java Source to calculate median for a given set of numbers.

## Source Code

import java.io.*;

class CalcMedian {

public static void main(String[] args) {

String inpstring = "";

try

{

System.out.print("Enter a Number Elements to calculate Median:");

long max = Long.parseLong(inpstring);

long[] arrElements = new long[100];

for (int i = 0; i < max; i++)

{

System.out.print("Enter [" + (i + 1) + "] Element: ");

arrElements[i] = Long.parseLong(inpstring);

}

for(int i = 1; i < max; i++)

{

for(int j = 0; j < max - i; j++)

{

if(arrElements[j] > arrElements[j + 1])

{

long temp = arrElements[j];

arrElements[j] = arrElements[j + 1];

arrElements[j + 1] = temp;

}

}

}

if ((max % 2) == 1)

{

// for odd count

int index = (int) max / 2;

System.out.println("Median: " + arrElements[index]);

}

else

{

// if there 10 elements (index 0-9),

// average of (10/2 = 5th)  and (10/2-1 = 4th) element

int index1 = (int) max / 2;

int index2 = index1 - 1;

double value = (arrElements[index1] + arrElements[index2]) / 2.0;

System.out.println("Median: " + value);

}

}

catch (Exception e)

{

e.printStackTrace();

}

}

}

## Output

D:\Program Files\Java\jdk1.6.0_23\bin>java CalcMedian

Enter a Number Elements to calculate Median:5

Enter [1] Element: 10

Enter [2] Element: 5

Enter [3] Element: 30

Enter [4] Element: 2

Enter [5] Element: 30

Median: 10