Java Insertion Sort not sorting -

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public static void main(string[] args) {     movies2[] movies = new movies2[10];      movies[0] = new movies2("the muppets take manhattan", 2001, "columbia tristar");     movies[1] = new movies2("mulan special edition", 2004, "disney");     movies[2] = new movies2("shrek 2", 2004, "dreamworks");     movies[3] = new movies2("the incredibles", 2004, "pixar");     movies[4] = new movies2("nanny mcphee", 2006, "universal");     movies[5] = new movies2("the curse of were-rabbit", 2006, "aardman");     movies[6] = new movies2("ice age", 2002, "20th century fox");     movies[7] = new movies2("lilo & stitch", 2002, "disney");     movies[8] = new movies2("robots", 2005, "20th century fox");     movies[9] = new movies2("monsters inc.", 2001, "pixar");      printmovies(movies);     sorttitle(movies, 1);     printmovies(movies);     //sortyear(movies, 2);     //printmovies(movies);     //sortstudio(movies, 1);     //printmovies(movies); }  public static void printmovies(movies2[] list) {     for(int = 0; < list.length; i++)         system.out.println(list[i]); }  public static movies2[] sorttitle(movies2[] source, int direction) {    movies2[] dest = new movies2[ source.length ];    if(direction == 1)    {    system.out.println("sort title - ascending");     ( int = 0 ; < source.length ; i++ )     {        movies2 next = source[i];        int insertindex = 0;        int k = i;        while ( k > 0 && insertindex == 0 )        {           if ( next.gettitle().compareto(dest[k-1].gettitle()) > 0 )           {               insertindex = k;           }           else           {              dest[ k ] = dest[ k - 1 ];           }            k--;        }        dest[ insertindex ] = next;     }  } else if( direction == 2) {     system.out.println("sort title - descending");     ( int = 0 ; < source.length ; i++ )     {        movies2 next = source[ ];        int insertindex = 0;        int k = i;        while ( k > 0 && insertindex == 0 )        {           if ( next.gettitle().compareto(dest[k-1].gettitle()) < 0 )           {               insertindex = k;           }           else           {              dest[ k ] = dest[ k + 1 ];           }            k--;        }        dest[ insertindex ] = next;     }   } else  {     dest = source; }    return dest;

} have code array of movies. in movies class there getter methods parameters. when try run code number being 2, descending choice, gives me null error. when try 1 ascending, doesn't sort it.

the problem here

if (next.gettitle().compareto(dest[k - 1].gettitle()) > 0) {

may next.gettitle() null. title not set properly.

try simple method sort array:

public static void sort(movies2[] numbers, boolean ascending) {      movies2 tempvar = null;      (int = 0; < numbers.length; i++) {         (int j = 1; j < numbers.length - i; j++) {             int diff = numbers[j - 1].gettitle().compareto(numbers[j].gettitle());             if ((ascending && diff > 0) || (!ascending && diff < 0)) {                 tempvar = numbers[j - 1];                 numbers[j - 1] = numbers[j];                 numbers[j] = tempvar;             }         }     } }

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