mprabhat questions

mprabhat answers

• How to proceed if equals was overridden but not hashCode?
• Show the first element in a JComboBox
• Forcing JButton not to draw background
• Sending and receiving JSON object through DWR
• What is the difference in java.lang.OutOfMemory: GC Overhead limit exceeded vs. java.lang.OutOfMemory: Multicast listener
• How to initialise collections of collections in Hibernate
• Map.get() optimization in ?: ternary operator
• Having a hard time understanding how reference types work
• Java EE 6 app with OSGi
• Handling collection updates with JPA