Member variable!?

Hi

Don't confuse using this with declaring a member variable.

When you create a class, you may assign a member variable as in:

Class ABC {

private String mMyString;

}

no this is needed nor it should be used.

now in the constructor ... as in:

public ABC(String mMyString) {

this.mMyString = mMyString;

}

now when you create an object off the class as in:

ABC abc = new ABC ("hello there from abc");

ABC efg= new ABC ("hello there from efg");

you are passing "hello there from abc" to the constructor, then the abc instance of the ABC class will have a member variable mMyString and it will be assigned the value of "hello there from abc". Hence what [this] is doing: it says assign ""hello there from abc"" to mMyString that belongs to instance abc of the ABC class.

Same applies to ABC efg= new ABC ("hello there from efg");

you are passing "hello there from efg" to the constructor, then the efg instance of the ABC class will have a member variable mMyString and it will be assigned the value of "hello there from efg". Hence what [this] is doing: it says assign ""hello there from efg"" to mMyString that belongs to instance efg of the ABC class.

if this answers your question, please mark the question as answered.

Thank you

Branko;

Have a look at a couple of similar responses I have previously posted:

• Adding "this" in front of member variables
• Using the Java keyword "this"

Post back with further questions as this is an important concept to grasp and is not isolated to the Java programming language.

Ken