Method clone

Programs/Games/peg-solitaire/PegSolitaire.java:134–180

Properly overridden clone method @return A copy of PegSolitaire object.

()

	 * @return A copy of PegSolitaire object.
	 */
	public PegSolitaire clone(){
		try{
			//CLONING DATA FIELDS
			PegSolitaire copy = (PegSolitaire) super.clone();
			copy.grid = new GridLayout(grid.getRows(), grid.getColumns(), grid.getHgap(), grid.getVgap());

			copy.board = new JButton[board.length][board.length];
			for (int i = 0; i < board.length; ++i){
				for (int j = 0; j < board.length; ++j){
					copy.board[i][j] = new JButton();
					copy.board[i][j].setBackground(board[i][j].getBackground());
				}
			}

			copy.moves = new ArrayList<Integer>(moves);

			copy.reset = new JButton(reset.getText());
			copy.load = new JButton(load.getText());
			copy.save = new JButton(save.getText());
			copy.undo = new JButton(undo.getText());
			copy.auto = new JButton(auto.getText());
			copy.autoAll = new JButton(autoAll.getText());
			copy.pegNumber = new JButton(pegNumber.getText());
			copy.emptyCells = new JButton(emptyCells.getText());
			copy.pegsOut = new JButton(pegsOut.getText());

			copy.type1 = new JRadioButton(type1.getText());
			copy.type2 = new JRadioButton(type2.getText());
			copy.type3 = new JRadioButton(type3.getText());
			copy.type4 = new JRadioButton(type4.getText());
			copy.type5 = new JRadioButton(type5.getText());
			copy.type6 = new JRadioButton(type6.getText());

			copy.radios = new ButtonGroup();
			radios.add(copy.type1);
			radios.add(copy.type2);
			radios.add(copy.type3);
			radios.add(copy.type4);
			radios.add(copy.type5);
			radios.add(copy.type6);

			return copy;
		}
		catch (CloneNotSupportedException e){
			return null; //never happen
		}
	}

	/**
	 * Overridden equals method comparing PegSolitaire objects.