Pattern: Lazy Instantiation

Delay the creation of an object or other expensive action needed to initialize a variable until it is known that the variable will be used.

Links:

• Static Initializers and Lazy Instantiation
• Java Tip 90: Accelerate your GUIs - Improve GUI performance using 'lazy' evaluation.
• Lazy Instantiation - Balancing performance and resource usage.
• A Discussion on Forte - A case study for using Lazy Instantiation.