Thread: Method not being applied

Hello there, I'm doing an exercise we're you're supposed to sort strings in alphabetical order, without importing anything , aka, not using the Arrays.sort() method.

I think I got the method down partially right, or it is on the right track, but it is completely not being applied to my answer. All it prints out in the console is the actual String array twice, without sorting anything. Any ideas?

Thanks in advance.

public class arrayofstrings {
 public static void sort(String[] a) {
 String temp= "";
  int min;
  int i= 0;
  for (int j=0; j<a.length-1; j++) { 
   min = i;
   for (i=j+1; i<a.length; i++) 
    if (a[i].compareTo(a[min]) <0) 
    min = i; 
    if(min!= j)
 
         temp = a[j];
         a[j] = a[min]; 
         a[min] = temp;
 
 }
}
 public static void main(String[] args) {
   String[] a={"Rokas, Ausra, Tomas, Agne, Zenius"};
  for (int i=0; i<a.length; i++) System.out.print(a[i]+" ");
  System.out.print("\n");
  sort(a);
  for (int i=0; i<a.length; i++) System.out.print(a[i]+" "); 
  System.out.print("\n");
 }
}

Originally Posted by copeg

On quick glance, you should first check your variable and conditional scoping (eg brackets). For instance

if ( false ){
    System.out.println("First");
    System.out.println("Second"); 
}//prints nothing

Is not the same as

if ( false )
    System.out.println("First");
System.out.println("Second"); 
//prints 'Second'

Added brackets, to no obvious effect. I think the method works fine, it's just not being applied.

If you try to create an array of String in you code then this

String[] a={"Rokas, Ausra, Tomas, Agne, Zenius"};

is wrong.

It should be like this :

String[] a={"Rokas", "Ausra", "Tomas", "Agne", "Zenius"};

and your code to sort the array going to throw a ArrayIndexOutOfBounds Exception so first rid of the above and then go for that exception.