some concepts related with operating system

SEMAPHORES In programming, especially in UNIXsystems, semaphores are a technique for coordinating or synchronizing activities in which multiple process compete for the same operating system resources. A semaphore is a value in a designated place in operating system (or kernel) storage that each process can check and then change. Depending on the value that is found, the...

Friend

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pani puri in rainy days

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Client/Server Program

//for Server side import java.net.*; import java.io.*; class FileManager { public static String getFileContent( String filename ) throws IOException { String content=”"; try { BufferedReader reader = new BufferedReader( new FileReader( filename ) ); String data; while( ( data = reader.readLine() )...

RMI program

//code for remote Interface import java.rmi.*; public interface HelloInterface extends Remote { public String getMessage() throws RemoteException; public void display() throws RemoteException; } //Code for Server import java.rmi.*; import java.rmi.server.*; public class HelloServer extends UnicastRemoteObject implements HelloInterface { public...