Singleton creation

• Eager initialization - constructor in property
• Static block initialization - can handle exceptions
• Lazy Initialization - not thread safe
• Thread Safe Singleton - add synchronized, resources
• Bill Pugh Singleton Implementation
• Using Reflection to destroy Singleton Pattern
• Enum Singleton - works
• Serialization and Singleton

public class MySingletonSimple {
    private Object instance;
    private MySingletonSimple() {}
	
	static {
		instance = new MySingletonSimple();
	}
	
    public Object getInstance() {
        if( instance == null ) {		// not need it it wont be null as loaded in static block
										// if created in constructor wont be thread-safe
            instance = new Object();
        }
        return instance;
    }
}