private void addButtons() {

		// add buttons
		copyB.setLocation(dimentionX / 2 - buttonSizeX / 2 - offsetX
				- buttonSizeX, menuY + dataY + offsetY / 4);
		copyB.setSize(buttonSizeX, buttonSizeY);

		moveB.setLocation(dimentionX / 2 - buttonSizeX / 2, menuY + dataY
				+ offsetY / 4);
		moveB.setSize(buttonSizeX, buttonSizeY);

		delB.setLocation(dimentionX / 2 + buttonSizeX / 2 + offsetX, menuY
				+ dataY + offsetY / 4);
		delB.setSize(buttonSizeX, buttonSizeY);

		frame.getContentPane().add(copyB);
		frame.getContentPane().add(moveB);
		frame.getContentPane().add(delB);

		// add checkBoxes

		leftSizeCheckBox = new JCheckBox("Size");
		leftSizeCheckBox.setBounds(110, 56, 104, 18);

		leftDateCheckBox = new JCheckBox("Date");
		leftDateCheckBox.setBounds(110, 86, 104, 18);
		// leftDateCheckBox.setSelected(true);

		rightSizeCheckbox = new JCheckBox("Size");
		rightSizeCheckbox.setBounds(496, 56, 104, 18);

		rightDateCheckbox = new JCheckBox("Date");
		rightDateCheckbox.setBounds(496, 86, 104, 18);

		frame.getContentPane().add(leftSizeCheckBox);
		frame.getContentPane().add(leftDateCheckBox);
		frame.getContentPane().add(rightSizeCheckbox);
		frame.getContentPane().add(rightDateCheckbox);

		// flag for disabling files move copy delete
		debugModeCheckBox = new JCheckBox("debug");
		debugModeCheckBox.setBounds(496, 26, 104, 18);
		frame.getContentPane().add(debugModeCheckBox);
		debugModeCheckBox.setSelected(true);

		// add ComboBoxes
		leftComboBox = new javax.swing.JComboBox<String>();
		rightComboBox = new javax.swing.JComboBox<String>();

		leftComboBox.setLocation(10, 28);
		leftComboBox.setSize(buttonSizeX, buttonSizeY);

		rightComboBox.setLocation(400, 28);
		rightComboBox.setSize(buttonSizeX, buttonSizeY);

		frame.getContentPane().add(leftComboBox);
		frame.getContentPane().add(rightComboBox);

	}