How to iterate through List in Java ?
Lists are an ordered collection of elements in Java. Conceptually those are similar to Linked list in … Read more
JAVA Programs
How to Switch Between Multiple Java Versions On Ubuntu Linux ?
If you have installed multiple JDK on ubuntu and sometimes you might need to change the version … Read more
Byte Array To Integer And Integer to Byte Array Conversion using JAVA
If you are working in some network related data transfer like sending some commands over socket, then … Read more
How to check if Filepath is Normal File or Directory in JAVA ?
In our previous post, we seen how to identify if a file is present or Not using … Read more
How to generate random number between two numbers in Java ?
This post demos how you can get the random number between two numbers in a simple java … Read more
How to use Single Instance Class / Singleton class in Android / Java ?
The single instance classes are mostly used when you don’t know how to create a object of … Read more
Convert Byte Array to Hex using Java
The post briefs above how you can convert byte Array to Hex values and print those on … Read more
Java Native Interface ( JNI ) Example , Calling Native C functions from JAVA
The Java Native Interface (JNI) establishes a well-defined and platform-independent interface between the JAVA and Native C … Read more
How to Install Java using apt-get command on Ubuntu ?
Installing JAVA on ubuntu can be done using following easiest command. for Ubuntu 20.04, this command installs … Read more
How to check if File Exists in JAVA ?
If you want to check whether certain file is present or not in your disk before proceeding … Read more
