rahul aditya

at lines 27 & 28.

it says non-static content this cannot be referenced from static content

yes, i couldn't find out what the error is? so i posted it here..

sorry, but i use net beans.. is there any compile option in net beans?

run:
Exception in thread "main" java.lang.RuntimeException: Uncompilable source code - non-static variable this cannot be referenced from a static context
at bert.GameShape.main(GameShape.java:40)
Java Result: 1
BUILD SUCCESSFUL (total time: 6 seconds)
this was the error i got, could you please help me find out the problem?

class GameShape { private static void doShapes(PlayerPiece player) { throw new UnsupportedOperationException("Not yet implemented"); } private static void doShapes(TilePiece tile) { throw new UnsupportedOperationException("Not yet implemented"); } public void displayShape() { System.out.println("displaying shapes"); } class PlayerPiece extends GameShape { public void movePiece() { System.out.println("moving game piece"); } } class TilePiece extends GameShape { public void getAdjacent() { System.out.println("getting adjacent tiles"); } } public static void main(String[] args) { PlayerPiece player = new PlayerPiece(); TilePiece tile = new TilePiece(); doShapes(player); doShapes(tile); } }

[Edit - added code tags - see UseCodeTags for details]

can method overriding be done from the same class??

Thank you sir, it really did help me
i just found out the logic to be
a=a+b;
b=a-b;
a=a-b;
thank you very much

public class Swap {
public static void main(String[] args)
{
int a = 9;
int b = 7;
a=b;
b = (a+b)-b;
System.out.println("After swapping a = " + a + " b = " + b);
Swap s = new Swap();
}
}