Hello Marcus
Sorry to bother you but still I am getting the Exception I tried a lot
public class SimF
public void Print1()
{
String colors[]={"red","green","blue"};
Graph graph1;
try
{
graph1 = groupObserver.getgraph();
for (int i = 1; i < 8; i++)
{
//System.out.println("Creating Graph Element");
GraphElement ge = graph1.createElement
();
ge.setLabel ("Time Step" + i);
ge.setWidth (2);
ge.setColor (colors[i % 3]);
//System.out.println("For Loop");
ge.addX$Y ((5 - i) ^ 2, 1 + i);
ge.addX$Y (i + 9, 10 * Math.sin (Math.PI * i / 10));
//System.out.println(value[k]);
int t=0;
}
}
catch(Exception e)
{
System.out.println("Exception caught because of observer"+e);
}
}
public class
GroupObserver extends SwarmImpl
public Graph graph;
public Graph getgraph()
{
graph = new GraphImpl(getZone());
return graph;
}
Public Object buildObjects
graph = new GraphImpl(getZone());
graph.setWindowTitle("Group CFL veruses Iteration");
graph.pack();
Excepetion
Exception caught because of Observer java.lang.NullPointerException
Thanks a lot
Durga
"Marcus G. Daniels" <address@hidden> wrote:
durga bhavani wrote:
> It throws Exception can any one Please help m
You have tried to use the uninitialized `graph1' variable to create a
graph element before you have acquired it from the observer Swarm.
> Graph graph1;
> for (int i = 1; i < 8; i++)
> {
> System.out.println("Creating Graph Element");
> GraphElement ge = graph1.createElement ();
> try
> {
> graph1 = groupObserver.getgraph();
> }
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