You have a conflict there with the name Menu. You need to import the proper classes.Use java.awt.Menu m1=new java.awt.Menu(); if you want to go with your class name as Menu or else change your class name to some other name and import a Menu class. solved i am getting an error in adding a menu … Read more
In the Room class, the block variable (or one of its elements) is null. Because the error happens on this line: public void draw(Graphics g) { > for(int y=0;y<block.length;y++) { for(int x=0;x<block[0].length;x++) { block[y][x].draw(g); } } } I’d say you haven’t called define() (which seems to initialize the block variable) on your room by the … Read more
You have declared class level variables, but you are not using them, you are creating local variables in main() with the same name, these variables are not the same as class level variables. Instead of doing stuffs like this JTextPane ta = new JTextPane(); you should do this.ta = new JTextPane(); This code should fix … Read more
Your code is not proper, its full with bad practice. After a lot of effort I understood your problem. I am just giving the solution of the specific problem, but try to follow the comments given to your question for better understanding of the uses of Java swing components. Solution: change this portion of your … Read more
Take a look at Oracle’s tutorial: http://docs.oracle.com/javase/tutorial/2d/advanced/user.html They describe how to recognize clicks within the Graphics2D. They also show how to move a single shape. You have to advance this approach a little bit in order to support multiple elements. 1 solved Change Coordinates directely in the graphe [closed]
Why are you creating new instance of JButton in roll? You just need to change the icon of the buttons which are already displayed on the screen This… public void roll() { value = nextValue() ; if (value==1){ Icon i=new ImageIcon(getClass().getResource(“1.png”)); c= new JButton(i); add(c); } else if(value==2){ Icon im=new ImageIcon(getClass().getResource(“2.png”)); c= new JButton(im); add(c); … Read more
If you get the same values for every pixel there are several possible reasons. a) your image has the same values in every pixel b) you do not change x and y between your calls to getRGB c) you read something else but the return value of getRGB solved getRGB(x,y) in Java awt returns for … Read more
Take this code import java.awt.Frame; public class AwtPrac { private static void init(){ Frame fm = new Frame(“Java Programm”); fm.setTitle(“AwtPrac”); fm.setSize(300,300); fm.setVisible(true); } public static void main(String[] args) { init(); } } 3 solved java.AWT – setSize() method
You can use AWT,SWT or Swing to build desktop applications. AWT and SWT are basic implementations and bit hard because of the limited GUI components. Swing is a kind of extended version of AWT but with more GUI components. Swing use almost all the AWT components in it. So It will be easy for you … Read more
This is caused by the basic fact that you have broken the paint chain. Painting in AWT/Swing is made of a chain of method calls. If you neglect to maintain this chain, you start ending up with paint artifacts, in the form you are seeing. The Graphics context is a shared resource, that is, every … Read more