Sorting arrays of primitive types (byte, char, double, float, int, long, and short) is easy.Example:

 import java.util.*;import java.awt.*;class SortDBL						// Sorts an array of randomly generated double values.{	public static void main(String[] args)	{		double[] dblarr = new double[10];		for (int i=0; i < dblarr.length; i++)		{		      dblarr[i] = Math.random();	// Genertate random variables		}		for (int i=0; i < dblarr.length; i++ /* Imagine using i=i+1 for thenovelty but it gets optimized anyway */)		{      		System.out.print(dblarr[i], " ");	// Before		}		System.out.println;		Arrays.sort(dblarr);			// Sort the array		for (int i=0; i < dblarr.length; i++)		{      		System.out.print(dblarr[i], " ");	// After		}		System.out.println;	}}

Simple isn't it?