java - How to make a random 2D jagged array of varying length? -

i have create 2d jagged array random number of rows (5-10) each row having random length (5-10). filled jagged array random numbers. should this:

2 4 1 5 3 8 6 3   2 5 8 9 7 4 3 5 6   6 7 9 3 5  2 6 7 8 4 5 3 6 7  1 4 2 2 1 

this current createarray method

 public static int [][] createarray(){    int row = (int)(math.random()*5)+5;     int column = (int)(math.random()*5)+5;     int[][]array = new int[row][];     for(int = 0; < array.length; i++){       for(int j = 0; j < array[i].length; j++){         //fill matrix random numbers         array[i][j] = (int)(math.random()*10);            }}       return array;       }//end createarray method 

however, randomizes rows , columns , doesn't create jagged array. can lead me in right direction? lot!

as @doubledouble stated, code throws nullpointerexception.

it looks want this:

public static int [][] createarray(){    int row = (int)(math.random()*5)+5;     //int column = (int)(math.random()*5)+5; //not needed     int[][] array = new int[row][];     for(int = 0; < array.length; i++){        int column = (int)(math.random()*5)+5; //create random column count on each iteration       array[i] = new int[column]; //initialize each random column count        for(int j = 0; j < array[i].length; j++){         //fill matrix random numbers         array[i][j] = (int)(math.random()*10);          }    }       return array;       }//end createarray method 

of course produce different results each time runs, here sample of output:

1 2 5 4 3 9 2 7 9  4 1 4 2 2 6  9 5 7 8 7 8 4 2  8 3 8 7 9 4 0  0 2 1 4 9 3 7 8  4 0 3 8 3  1 3 8 9 9 8