How to call a method once everyday?

How to call an array method I wrote from another class:?

• This is the array method I wrote to assign random numbers to an array: public SpreadSheet(int r, int c) { r = rows; c = cols; int [][] sheet= new int [r][c]; for (r=0; r < rows; r++) { for (c=0; c < cols; c++) { sheet[r][c] = (int)(100*Math.random()); }//end of loop for c }//end of loop for r } This is how I am trying to call it in another class with (5,7) 5 rows 7 columns: SpreadSheet whichSheet = new SpreadSheet(5,7);

• Answer:

  You shouldn't set r and c equals to rows and cols. You pass 5 and 7 into the method; now r = 5, c = 7. And then in your method, you set r and c equals to another variable, r and c no longer contains 5 and 7, respectively. Second, the variables rows and cols never declared. Declare the 2 variables and than set rows and cols equals to r and c, respectively. public SpreadSheet(int r, int c) { int rows = r; int cols = c; int[][] sheet = new int[rows][cols]; for (int ROWS = 0; ROWS < rows; ROWS++) { for (int COLS = 0; COLS < cols; COLS++) { sheet[ROWS][COLS] = (int)(100*Math.random()); } } } And then you call the method in another class passing 5 and 7 into the method's parameter.