Count line word and characters in file
In this example we’ll see how to count line, word and characters in file.
package com.javatechig;
import java.io.BufferedReader;
import java.io.File;
...
How to delete and rename a file in java
This post provides sample program explaining how to delete and rename a file in java
Rename file in Java
package com.javatechig;
import java.io.File;
import...
Copy file from one folder to another in java
This example explains how to Copy file from one folder to another in java.
package com.javatechig;
import java.io.File;
import java.io.FileInputStream;
imp...
Copying the Contents of One text file to Another in Java
In this example, we will see a sample program to copying the contents of one text file to another in Java.
How to Create a Text File in Java
In this article we will see the sample code to create a text file in java.In this example, we'll use the PrintWriter class.
Invoke Method Using Java Reflection
Java provides reflection API to do introspection of an object and modify its behavior on the run time. The class Class in the Java API forms the basis to identi...
Covariant return type example in java
The covariant return type allows narrowing down return type of the overridden method. This feature will help to avoid down casting on the client side. It allows...
If-then and if-then-else Statements in Java
If-else statement in java is used for conditional checks for decision making. You can have multiple hierarchies of if-else statements. Once any of the if or els...
Switch-Case statement in Java
Switch case is another alternative for if-else statements. Switch case statement compares value in the object in the expression with the expressions associated ...
How to Remove Duplicate in ArrayList using Comparator
This example shows how to remove duplicate from ArrayList using Comparator. The easiest way to remove duplicate is by passing the List to an Set. We will use C...
Basic Java Language Constructs
Java keywords
There are over 50 reserved keywords in Java programming language. Keywords are the language construct has predefined meaning in the Java. As they ...
History of Java Programming Language
Java Programming Language was developed with the combined effort from 5 great geeks, James Gosling, Patrick Naughton, Chris Warth, Mike Sheridan and Ed Frank, w...
Introduction to Java, JVM and Writing Your Fist Java Program
Java is a high level, English like, object-oriented programming language with tons of APIS (application programming interface) for developing applications. Java...
How to Remove Duplicate Values From Java ArrayList
This example shows how to remove duplicate from ArrayList. The easiest way to remove duplicate is by passing the List to an Set. As set doesn't support duplicat...
Java Collection Complete Tutorial with Examples
In this tutorial we’ll see the core collection interface available in java and their behavior. Examples in each section will show you the implementation and usa...