Hi,
I have a couple of doubts in java. Is it a right place to ask this
type Questions. If not where can I ask ?
Is java pass arguments to functions PassByValue / PassByReference
other than primitive datatypes ?
If PassByRefernce this reference is equivalent to C++ Referencee ?
pls see the follwoing eg.
class PassBy {
PassBy() {
String[] arr = new String[] {"Hi"};
System.out.println("B4 calling fn, " + arr[0]);
Call(arr);
System.out.println("After calling fn, " + arr[0]);
String str1 = "Ramesh";
String str2 = "Babu";
System.out.println("B4 calling fn,1 " + str1 + " 2-- " + str2);
Swap(str1, str2);
System.out.println("after calling fn,1 " + str1 + " 2-- " + str2);
String arr1[] = new String[] {"java"};
String arr2[] = new String[] {"babu"};
System.out.println("B4 calling fn,1 " + arr1[0] + " 2-- " + arr2[0]);
SwapArr(arr1, arr2);
System.out.println("after calling fn,1 " + arr1[0] + " 2-- " + arr2[0]);
}
void SwapArr(String a1[], String a2[]) {
String[] temp = a1;
a1[0] = a2[0];
a2[0] = temp[0];
System.out.println("In fn,1 " + a1[0] + " 2-- " + a2[0]);
}
void Swap(String s1, String s2) {
String temp = s1;
s1 = s2;
s2 = temp;
System.out.println("In calling fn,1 " + s1 + " 2-- " + s2);
}
void Call(String[] local) {
local[0] = "Bye";
System.out.println("In fn " + local[0]);
}
static public void main(String[] args) {
new PassBy();
}
}
Please explain. Thanks in advance. Bye...
********************************************************************
Ramesh Babu A. Phone 91-44-4909208
FiLL Project,
TeNet Group, <[EMAIL PROTECTED]>
IIT - Madras.
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