Bonjour !
voilà jai un trés gros probléme avc netbeans IDE 7.0.1... quand j'execute mon application ya un message d'erreur qui s'affiche :
run:
java.lang.NoClassDefFoundError: memoire/MemoireApp
Caused by: java.lang.ClassNotFoundException: memoire.MemoireApp
 at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
 at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
Could not find the main class: memoire.MemoireApp.  Program will exit.
Exception in thread "main" Java Result: 1
BUILD SUCCESSFUL (total time: 0 seconds)
 
ya mm pas la petite paléte java qui s'affiche ! j'arrive pas a réglé le probléme.. de l'aiiide SVPPPP! merci d'avance

et quand je ré execute ya ce msg qui saffiche  
 
run:
Error occurred during initialization of VM
Could not create the Java virtual machine.
Could not reserve enough space for object heap
Java Result: 1
BUILD SUCCESSFUL (total time: 0 seconds)