Java

Explain how to use the Java Native Access library (JRA) to access native libraries. References: Using JNA to Access Native Dynamic Libraries 1. Introduction Sometimes we need to use native code to implement some functionality: Reusing legacy code written in C/C++ or any other language able to create native code. Accessing system-specific functionality not available in the standard Java runtime. Trace-offs: Can’t directly use static libraries Slower when compared to handcrafted JNI code....

Explain how to use basic I/O. References: Basic I/O Reading and writing files in Java (Input/Output) - Tutorial 1. I/O Streams An I/O Stream represents and input source or an output destination. A stream is a sequence of data. input stream: is used to read data from source, once item at a time. outputs stream: is used to write data to a destination, once item |at a time. --stream--> 0101010101... ----------> java....

Java is a programming language created by James Gosling from Sun Microsystems (Sun) in 1991. Java allows to write a program and run it on multiple operating systems. References: Java Platform Standard Edition 8 Documentation Introduction to Java programming - Tutorial 1. Introduction to Java Oracle has two products implement Java SE: JDK (Java SE Development Kit): is a superset of JRE. JRE (Java SE Runtime Environment): provides the libraries, the Java Virtual Machine (JVM) and other components....