step program

public void step() {
		//Goes through and checks if the cells will be dead or alive next round.
		boolean[][] nextCells = new boolean[cells.length][cells[0].length];
		for (int row = 0; row < cells.length; row++) {
			for (int column = 0; column < cells[0].length; column++) {
				int neighborCount = 0;
				if (row > 0 && column > 0 && cells[row-1][column-1] == true) {//Up left
					neighborCount++;
				}
				if (row > 0 && cells[row-1][column] == true) { //Up
					neighborCount++;
				}
				if (row > 0 && column < cells[0].length-1 && cells[row-1][column+1] == true) { // up Right
					neighborCount++;
				}
				if (column > 0 && cells[row][column-1] == true) { //Left
					neighborCount++;
				}
				if (column < cells[0].length-1 && cells[row][column+1] == true) { // right
					neighborCount++;
				}
				if (row < cells.length-1 && column > 0 && cells[row+1][column-1] == true){ //down left
					neighborCount++;
				}
				if (row < cells.length-1 && cells[row+1][column] == true) { //down
					neighborCount++;
				}
				if (row < cells.length-1 && column < cells[0].length-1 && cells[row+1][column+1] == true) { //down right
					neighborCount++;
				}
				//Rules of living
				if (cells[row][column] == true) {//It's alive!
					if (neighborCount == 2  || neighborCount == 3) {
						nextCells[row][column] = true;//Alive next time
					}
					else {
						nextCells[row][column] = false;//Dead next time
					}
				}
				else {
					if (neighborCount == 3) {// I'm dead
						nextCells[row][column]= true;//alive next time
					}
					else {
						nextCells[row][column] = false; //dead next time
					}
				}
			}
		}
		//Set all cells to their new state, redraw the grid
		cells = nextCells;
		panel.setCells(nextCells);
		frame.repaint();
	}