this is my source

i need this program to sort an array of strings alphabetically, I.e. if array[0] is zak, and array[1] is bob, then the arrays should switch order....
/*
import java.io.*;

public class ArrayLab
{
public static void main(String[] asdf) throws IOException
{
InputStreamReader reader = new InputStreamReader(System.in);
BufferedReader input = new BufferedReader(reader);

System.out.print("How many names? : ");
int arraysize=Integer.parseInt(input.readLine());

String [] names = new String [arraysize];




for(int z=0;z<arraysize;z++)
{


System.out.print("Please enter a name: ");
names[z] = input.readLine();

}




//int min;
//String temp=names[0];
//
//for(int index=0; index<arraysize-1;index++)
// {
// min=index;
// for(int scan= index+1; scan< arraysize; scan++)
// if(names[scan].compareTo(names[index]) < 0)
// min=scan;
//
//
// temp=names[min];
// names[min]= names[index];
// names[index]=temp;
// }

int min;
String temp=names[0];


for(int index=0; index<arraysize-1;index++)
{
// min=index;
for(index=0;index<arraysize-1-index;index++)
{
if(names[index+1].compareTo(names[index]) < 0)
{
//min=scan;

temp=names[index];
names[index]=names[index+1];
names[index+1]=temp;

}
}
}

//prints the arrays
for(int i=0;i<arraysize;i++)
{
System.out.println((i+1) + ") " + names[i]);
}






System.out.println("");
System.out.println("");
System.out.println(" Would you like to change a name? (1 for yes , 2 for No)");
int choice= Integer.parseInt(input.readLine());

for(int z=0; z<1;)
{
if(choice==2)
z=1;
else if(choice==1)
{
System.out.println(" Which name would you like to change? (0 -" + arraysize + " )");
int arraychoice= Integer.parseInt(input.readLine());

System.out.println( " Enter changes : ");
String arraychange=input.readLine();

names[arraychoice]=arraychange;

System.out.println("");
System.out.println("");

for(int i=0;i<arraysize;i++)
{
System.out.println(i + ") " + names[i]);
}


System.out.println("Any more changes? (1 for Yes, 2 For No)");
int more= Integer.parseInt(input.readLine());
if(more==1)
z=0;
else
z=1;



}



}







}
}
*/