rohan yadav

Following code demonstrate c++ code
int QMSMessage::write (unsigned short v, char *buffer, int startPos) { char *loc = (char*)&v; buffer[startPos+1] = loc[0]; buffer[startPos] = loc[1]; return 2; }

Hi all,
I am porting my code base from c++ to JAVA, I want to convert an integer to short, to insert it into byte array.
e.g.

protected static final int QMSIdDataRaw = 0xE033; ctpByteBufferP = write(QMSIdDataRaw ); ...... public byte[] write(int v) { byte[] buffer = new byte[2]; //I want to put v into buffer which is having length of 2(previously in my c++ code QMSIdDataRaw was unsigned short and java doesn't support unsigned short) return buffer; }


can you please help me with this..??

Ohh .. Thanks Mathew and Andrey for your suggestions..
It seems that i have made a habit of thinking in c++ style

Then how should i achieve pass by reference in java(as we do it in c++, i am from c++ background)

Hi all,
I wants to swap primitive data types in java, as java uses pass by value for primitive data types , i used wrapper class and passed to the swap function still i am not able to swap the values can you please help...
Below is the code segment for the same....


public class Sample { void swap(int a, int b) { int c = 0; c=a; a=b; b=c; } public static void main(String[] args) { Sample s = new Sample(); //int a = 10, b=20; Integer a = new Integer(10); Integer b = new Integer(20); System.out.println(a); System.out.println(b); s.swap(a, b); System.out.println(a); System.out.println(b); } }

I guess Left to right is general rule but i am not sure, I tried some generalized scenario's, i find left to right rule working properly,
But as i said i am not sure...

Expressions are evaluated from left to right in c++,
As ++i is true, right hand side of || will not get evaluated.

So do i required to import windows/linux library and then get processID??

Hey anyone please tell me is there any API for getting PID of calling process in java........???

Thanks Ed, but your post says something about JVM instance..... I just wanted to know is there any API/function call to get calling process PID in java...........??

Hi everybody,
I wanted to know How to get processId of calling process in Java??
I know processId is platform specific but i wonder if JAVA supports a library or function for getting processId independent of platform??

Does we have any certification for C++??
Like we have for java ,SCJP and all other stuffs..

That was also first initial thought, I m currently refactoring code, so i basicaaly dindint understand the code.. so I asked Here is code..
public void addMessage (QMSMessage message) { lock (this) { messageList.Add (message); if (messageList.Count == 1) { hasNewMessage = true; Monitor.Pulse (this); } } }

Or stick your arm in the nearest sphygmomanometer.

. And i dont need a such thing for such a small topic,but i bet you are carrying sphygmomanometer in your pocket that for sure

What exactly Monitor.Pulse() method do in Java...??

Also Look out for gcc compiler if you are interested in system programming..