Java Program
Java Pragrams /* This is a simple Java program. Call this file "Example.java". */ class Main { // Your program begins with a call to main(). public static void main(String args[]) { System.out.println("This is a simple Java program."); } } //area of a circle class AreaOfCircle { public static void main(String s[]) { double pi, r, a; pi = 3.14; r = 10; a = pi * r * r; System.out.println("Area of circle = " + a); } } //char data type example class CharDemo { public static void main(String s[]) { char ch1; ch1 = 'A'; System.out.println("ch1 = " + ch1); ch1 = 65; //A System.out.println("ch1 = " + ch1); ch1++; // increment ch1 System.out.println("ch1 = " + ch1); } } //Type casting example class Conversion { public static void main(String s[]) { byte b; int i = 257; double d = 3.14; System.out.println("\n\nConversion of int to byte."); b = (byte)i; System.out.println(...