Variable declaration inside a loop

Question

One common dilemma I have faced throughout programming is regarding declaring variables inside a loop. Say I have to perform something like the following:

List list=myObject.getList();
Iterator itr=list.iterator();
while (itr.hasNext()){
    BusinessObject myBo=(BusinessObject)itr.next();
    process(myBo);
}

In the above snippet, should myBo be declared outside the loop or does declaring it inside the loop not cause harm to memory and performance?

Answer 1

Declaring it inside the loop won't cause any harm to the memory and performance.