Wednesday, March 5, 2014

Tricks For All Java Programmers

By Samuel Akinwumi


When it comes to programming, there are concepts that the seasoned experts may consider obvious but which a newbie may not be familiar with. In Java programming, each person is bound to make mistake or two when starting out. The mistakes will usually be found in the code structure and syntax and can be avoided with the right tips.

Programmers can reduce the amount of time spent on any language by minimizing the set of conditions they have to continuously test. An if condition for instance does not have to be tested over and over again within the same block. Utilizing an if else condition will make his work easier.

Learn of different ways to use the switch statement and the if else statement. These two statements are used in very different scenarios. A switch statement can for instance be effective in returning a result by selecting the most relevant. The if else statement will however make it easier to read and understand the entire code.

When initializing a variable within any iterative loop, avoid using the for loop. Instead make use of the do while loop. This loop can be entered once irrespective of condition being tested by the programmer. Initializing variables outside the loops is a very good programming idea.

Always assign values to a variable when you are initializing it. Even though you could be tempted to use lazy loading, assigning values when initializing the variable makes it easier to refer to later on. It also makes the variable worthy of foresting to in future scenarios.

Repetition is often achieved by using the same code snippet more than once. Methods can be used when coding in order to save time and also avoid this type of repetition. Break the entire code in to methods that have been well formed and you will save yourself lots of valuable time.

Any object that it not required should not be used. Unnecessary objects are considered a very expensive method of coding. They make the code heavier and in turn end up utilizing a lot of memory space. When too much memory space is used, performance is also impacted negatively.

In java, local variables may be great, but you should limit the scope of all local variables. Copy pasting old code snippets could see you insert bugs in to a program that is still under development. Reduce the scope of each local variable in order to make it more readable and less prone to errors.




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