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Naresh
corejava pass by value semantics
1 Answer(s)      6 years and 7 months ago
Posted in : Java Beginners


Example of pass by value semantics in Core Java.


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April 11, 2008 at 8:18 PM


Hi friend,

Java passes parameters to methods using pass by value semantics. That is, a copy of the value of each of the specified arguments to the method call is passed to the method as its parameters.
Note very clearly that a lot of people confuse the "reference" terminology with respect to Java's references to objects and pass by reference calling semantics. The fact is, in dealing with Java's references to objects, a copy of the reference's value is what is passed to the method -- it's passed by value. This is, for example, why you cannot mutate the (original, caller's) reference to the object from inside the called method.

eg.

public class PassesExample{
public static void main(String [] args){
int a=5;
prm(a);
System.out.println("Passing value is="+a);
}
static void prm(int a){
a=6;
}
}


----------------------------

read for more information,

http://www.roseindia.net/java/


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