Bytes are allocated less memory than integers, so if you are absolutely sure that the value will never be higher than 127 or lower than -128, then you can safely choose to use them.

This article analyzes the main causes of memory leaks in Java Enterprise Edition (Java EE) ... Local variables are allocated when a method is invoked and de-allocated when the method is exited.

The reason is that Java object variables are simply references that point to real objects in the memory heap. Therefore, even though Java passes parameters to methods by value, if the variable ...

When those memory areas are no longer needed, the programmer must remember to deallocate them. When memory is allocated, but not deallocated, a memory leak occurs (the memory has leaked out of the ...