狠狠撸

functional language high level awt java java awt swings introduction programming fun hello world no one pointed for this sub null valued termination decomposition top down implementation problem solving compiler based language most used programming language high level programming functional procedural pointers strings array c language procedura review perl market analysis requirements specifications context diagram use case uml data model design model software design object oriented type not considered parameters difference same name early binding polymorphism binding static overloading cpp tutorial components applet gui scripting language