Link Resource Belajar J2ME

Posted: April 22, 2010 in J2ME

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Coding Tips

The following tips are only suggestions and may or may not give gains in performance, it is to your own judgment and discretion to use them or not.

Use StringBuffer instead of String because of the fact the String object can not be changed. Any modification to a String variable is actually a new object creation.
Using variables are more efficient then arrays.
Counting down in loops is faster then counting up
Try to use already built in methods, for example if you want to copy data from one array to another use System.arraycopy more then likely this method will be more efficient than the one you created yourself
Remove constant calculations in loops
Reuse objects
Assign null to unused objects, especially unused threads
Use compound operators like x += 1 instead o f x = x + 1 because fewer byte codes is generated
Avoid synchronization in loops because there is an extra over head to lock and unlock each time the loop occurs.
Accessing class variables directly is faster then using setter and getter methods