Important Basics of Java Programming Language
Hello Guys.... This is my first post and in this i am going to talk about some of the important basics and concepts of Java Programming Language which are generally ignored by most of us... I hope that after reading this post many basic concepts regarding java will be cleared to you.So let's get started:- 1. Automatic Type Promotion Consider this code :- public class promotion { public static void main(String args[]) { byte a=10; byte b=2; byte c=a*b; System.out.println("Result of 10x2 = "+c); } } When we run this code in a file named promotion.java we get the error as follows :- Exception in thread "main" java.lang.Error: Unresolved compilation problem: Type mismatch: cannot convert from int to byte at promotion.main(promotion.java:7) So why do we get this error ???? as we know that the range of the byte is 256 and the multiplication of 'a' and 'b' is 20 whi