Expt 1 - Part 1, Part 2 & Part 3

Explanation

This Java code is a simple program designed to demonstrate how to declare, initialize, and print the values of string variables. It defines a class named prog1, which contains the main method—the entry point for any Java application. Inside this method, three String variables (rollNo, name, and dept) are created. Each variable is assigned a specific text value. Finally, the program uses System.out.println() to display the value stored in each of these variables on the console, with each value appearing on a new line. Essentially, it's a basic "hello world" equivalent for demonstrating string manipulation and console output.

Algorithm

1. Start Program Execution: The Java Virtual Machine (JVM) begins execution at the main method of the prog1 class.
2. Declare and Initialize rollNo: A variable named rollNo of type String is declared, and the text value "25LEC07" is assigned to it.
3. Declare and Initialize name: A variable named name of type String is declared, and the text value "Nathan Lobo" is assigned to it.
4. Declare and Initialize dept: A variable named dept of type String is declared, and the text value "ECOMP" is assigned to it.
5. Print rollNo: The current value stored in the rollNo variable is printed to the standard output (console), followed by a new line.
6. Print name: The current value stored in the name variable is printed to the standard output (console), followed by a new line.
7. Print dept: The current value stored in the dept variable is printed to the standard output (console), followed by a new line.
8. End Program: The main method completes, and the program terminates.