JAVA Programming

Number Operations

• Convert Byte Array to Hex using Java
• Byte Array To Integer And Integer to Byte Array Conversion using JAVA
• How to generate random number between two numbers in Java ?

File Operations

• How to check if Filepath is Normal File or Directory in JAVA ?
• How to check if File Exists in JAVA ?

Java Classes

• How to use Single Instance Class / Singleton class in Android / Java ?

JSON programming in JAVA

• Example of creating simple JSON in JAVA
• Example of creating JSON Array in JAVA