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Essay On Static Members

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Week Five Learning Journal The Ongoing Emphasis on Static Members Static, static, static; but what does all this static mean? Re occuringly, our reading material conveys the idea of static members. During the course of chapter five, I develop a keen understanding on how to use static members, say variables and methods. Building static variables and methods means building class members that hold the same values through all instances. No matter how many instances of a class I instantiate, static members will retain the same value. This is useful for global placement of data. Building non-static variables and methods means building class members that are unique to each instance of the class you create. Create a backbone class, which lays …show more content…

Chapter five teaches me to instantiate variables of references of objects with the new keyword, before trying to use my variable. How I Can Use Null-Pointer Wisdom in My Own Programming at Home Moreover, many programmers, like me, have their development cycle haulted when the SDK or 3DEngine crashes, and all the console says is “null-pointer exception.” From reading chapter five, I can tell you this exception is thrown when an object-referenced variable was not instantiated. This error is simple to fix, takes initializing the troubled variable with the new keyword and constructor of its referenced object class, and there we go. Months of questioning and advice seeking on SDK forums can be bypassed with chapter five, when all you really need to do is identify which variable on the call stack is causing the null-pointer reference. Identify which object reference it should have, and initialize it with the new keyword and class constructor. Arrays of Type Object I like writing in-depth learning journals, because looking back on learning journals point out material I find especially interesting. Arrays of type object are handy when you’ve created an object class, and need to spawn an array of them. In video game programming, often it’s useful to create a bullet object, or a character object, or a background object. Knowing Java creates array of objects help programmers rapidly spawn multiple types of their objects. Java is one of my favorite programming

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