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I have two classes One is Carnivore and the other is Herbivore

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// I have two classes One is Carnivore and the other is
Herbivore. Each of them is having its own shape and move
function across the screen. Now i want to put them
togehter in the following Environment Class so that i can
see them moving across the screen simultaneously. But
this function is giving me a blank screen if i try to add both
of those classes. If i add just one class, it works. What am
i doing wrong in this Java coding? import
javax.swing.JFrame; import javax.swing.JPanel; public
class Environment { public static Environment earth;
public Environment() { Carnivore s = new
Carnivore(); Herbivore h = new Herbivore();
JFrame f = new JFrame(); JPanel pane = new
JPanel(); pane.add(s); pane.add(h);
f.add(pane); f.setVisible(true);
f.setSize(600,400);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setTitle(\"The Jungle Life\"); } }
Solution
Modified your code... you should have main method, then
we have to create and panel and add this panel to frame
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Environment
{

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//frame instance declared
public JFrame f;
//constructor
public Environment(){
prepareGUI();
}
//main method
public static void main(String args[]){
Environment earth = new Environment();
earth.showEnvironment();
}
//preparing frame in this method
public void prepareGUI()
{
f = new JFrame();
f.setVisible(true);
f.setSize(600,400);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setTitle(\"The Jungle Life\");
}
//then finally adding this frame to panel
public void showEnvironment(){
//creating carnivore and herbivore objects
Carnivore s = new Carnivore();
Herbivore h = new Herbivore();

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// I have two classes One is Carnivore and the other is Herbivore. Each of them is having its own shape and move function across the screen. Now i want to put them togehter in the following Environment Class so that i can see them moving across the screen simultaneously. But this function is giving me a blank screen if i try to add both of those classes. If i add just one class, it works. What am i doing wrong in this Java coding? import javax.swing.JFrame; import javax.swing.JPanel; public class Environment { public static Environment earth; public Environment() { Carnivore s = new Carnivore(); Herbivore h = new Herbivore(); JFrame f = new JFrame(); JPanel pane = new JPanel(); pane.add(s); pa ne.add(h); f.add(pane); f.setVisible(true); f.setSize(600,400); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.setTitle(\"The Jungle Life\"); } } Solution Modified your code... you should ha ...
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