Using g.drawLine to draw a graph

Question

I was wondering if anyone might have some insight as to how to use g.drawLine(x1, y1, x2, y2) to draw the contents of an array to make a graph?
This code shown here just illustrates the idea I'm after.
int a[] = arr;
for( int i = 0; i < a.length; i++ )
     g.drawLine(i, arr, i, 300);
The nature of my problem is not being able to get g.drawLine to work in the main, or getting the data from the main to the method. Thanks.

Answer 1

public class GraphComponent extends Canvas
private int[] arr;
public GraphComponent(int[] arr)
this.arr=arr;
public void paint(Graphics g)
// Do your paiting here using this.arr array.
public class MyFrame extends Frame
public MyFrame(int[] arr)
this.setLayout(new BorderLayout());
this.add(new GraphComponent(arr));
this.setBounds(10, 10, 400, 300);
public static void main(String[] args)
// Create the array here
MyFrame frame=new MyFrame(args);
frame.setVisible(true);
}