Java Runnable

The java Runnable interface is used to create multithreaded java application and java applets. The Runnable interface is defined in one of the java.lang package.

The Runnable interface has only one method deceleration i.e. run() method. The Runnable interface looks like below,

public interface Runnable { public abstract run(); }

When we implements [...]

Java Multithreading

Java multithreading is a technique similar to multitasking that allows a program or a process to execute may task concurrently. When we run a program in a multiprogramming environment, the computer creates an impression that it is doing several things at same time. Java multithreading simply extends the idea of switching between different [...]

Java Thread

A java thread is the basic unit to which the operating system allocates processor time. A java thread is an entity in a processor that can be scheduled for execution. A single default or main thread often starts a process. A thread share a CPU and only a single thread can be running [...]

Substring

A substring can be defined as string that is a part of another longer string. In java we can create substring from a string using substring() method of string class. The substring() method has two overloaded methods.

substring(int startIndex) substring(int startIndex, int endindex)

The first method accept only one parameter i.e. start index, it [...]