Returns to old value!

Question

Hi again guys.
Is there anyway that a global variable can keep its value assigned in a method,after the program leaves the class?
Let me give U an example!
class one
int x = null;//Global
void method()
x = 3;
void method2()
system.out.println(x);
class two
calls method2
Class two is called with a Button is pressed.My probelm is that x has returned to null when I return from class two
,but I need it to be 3!

Answer 1

LOL
That is not my code,just showing U what I mean.(Somewhere between an algorithm,and pseudo-code)
Below is part of the real code(Not promising it is any better!!!)
When the button in the Jframe is click button is called,which in turn calls incI().What I need is g3 to hold the value of g2,not of null.
Graphics2D g3 = null;
public void paintComponent(Graphics g)
addMouseListener(this);
addMouseMotionListener(this);
     super.paintComponent(g);
Graphics2D g2 = (Graphics2D) g;
     g3 = g2;
drawArc(0, g3);
void incI(int s)
     i++;
     drawArc(0, g3);
class Button extends JPanel
public Button(MyPanel inGraphPanel)
final MyPanel graphPanel = inGraphPanel;
JButton plusButton = new JButton(" + ");
JButton minusButton = new JButton(" - ");
JFrame frame = new JFrame("Frame");
Container cp = frame.getContentPane();
plusButton.addActionListener(new ActionListener()
public void actionPerformed(ActionEvent ce)
     graphPanel.incI();
minusButton.addActionListener(new ActionListener()
public void actionPerformed(ActionEvent ce)
cp.setLayout(new FlowLayout());
add(plusButton);
add(minusButton);
}