How Java Works (Interview Question Answers)
How Java Works (Interview Question Answers) What is Java, and why is it called a “write once, run anywhere” language? Java is a high-level, object-oriented programming language. It’s called “write once, run anywhere” because once you write a Java program and compile it into bytecode, it can run on any device that has a JVM (Java Virtual Machine), regardless of the operating system, because JVM is based on different OS like (Linux OS JVM,Windows OS JVm,mac OS JVM) What are the steps involved in writing and running a Java program? Write the Java code in a .java file. Compile the .java file using the javac command to create a .class file (bytecode). Run the program using the java command, which invokes the JVM to execute the bytecode. What is the difference between a .java file and a .class file in Java? A .java file contains the human-readable source code written in Java, while a...