运行j2me应用程序时出现Netbeans OutOfMemoryError

I always get java.lang.OutOfMemoryError: Java heap space error when I try to run any J2ME program in Netbeans (with the big green play icon). How can it be fixed? (I can run J2ME programs after I build them in netbeans and double-click on the generated JAD file.)I always get java.lang.OutOfMemoryError: Java h