Failed to load Main Class manifest attribute from jar comes when you run a Java program from command file from the JAR file. In that case, Java uses t http://javarevisited.blogspot.com/2013/01/how-to-fix-failed-to-load-main-class-manifest-at...
Just write a Java Program to calculate the simple interest without using any external library. You can use standard Java classes, methods and their op http://java67.blogspot.com/2012/10/java-program-to-calculate-simple-interest.html
Class and Object are two pillars of Object Oriented programming or OOP, despite that its very common for programmers to misunderstood the concept. The http://javarevisited.blogspot.com/2012/12/difference-between-class-and-object-in-oops-java.html
Recursion is one of the important programming technique to learn. There are many problems which can be solved using recursion by breaking into small p http://javarevisited.blogspot.sg/2012/12/recursion-in-java-with-example-programming.html
You have to write a program which returns sum of two numbers entered by user from command prompt in Java. You can use library methods like Scanner or http://java67.blogspot.com/2012/09/ava-program-to-add-two-numbers-code-example.html
Difference between Overloading and Overriding is probably one of the oldest OOPS interview question, but it is still very relevant. If you want to tes http://java67.blogspot.com/2012/09/difference-between-overloading-vs-overriding-in-java.html
Final is a very special keyword in Java. You can apply final keyword to variable, method and classes, but do you know what is a blank final variable? http://java67.blogspot.com/2012/09/what-is-blank-final-variable-in-java.html
Method overriding is very powerful feature of Java programming language, it allows you to add flexibility in your program, which is key for maintenanc http://java67.blogspot.com/2012/09/what-is-rules-of-overloading-and-overriding-in-java.html
Some differences between abstract class and interface in Java which helps to decide when to use abstract class and interface in Java. For example, int http://java67.blogspot.com/2012/09/what-is-difference-between-interface-abstract-class-jav...
Both Abstraction and Encapsulation are two of most useful object oriented basics, former allows you to view your system at higher level to increase fl http://java67.blogspot.com/2012/08/difference-between-abstraction-and-encapsulation-java-o...
Method Overloading is one of the fundamental concept of object oriented programming, also known as function overloading in some languages. It allows y http://java67.blogspot.com/2012/08/what-is-method-overloading-in-java-example.html
Package is a way to organize your code in Java, it provides structure and support to separate functionalities at different place making maintenance ea http://java67.blogspot.com/2012/08/what-is-package-in-java-how-to-use.html
NoClassDefFoundError is the most dreaded error for any Java programmer which comes because a class which was available during compile time is not avai http://java67.blogspot.com/2012/08/what-is-noclassdeffounderror-in-java.html
CLASSPATH or ClassPath or classpath and PATH are two confusing environment variables for Java beginners. They present a lot of problem for any progra http://java67.blogspot.com/2012/08/what-is-path-and-classpath-in-java-difference.html
Main method is entry point of any core Java program, which means execution of program starts from here. As soon as you type java command on command pr http://java67.blogspot.com/2012/08/what-is-main-method-in-java-why-main-is.html
List and Set are two most popular data structure from Java collections feature. One of the must know concept for Java programmers of all level, but th http://java67.blogspot.com/2012/08/difference-between-list-and-set-in-java.html
One of the selling point of Java in early 1990s was Write once, run anywhere, which means you dont need to create separate build for Linux and Windows http://java67.blogspot.com/2012/08/how-java-achieves-platform-independence.html
Though both Wait() and Sleep() method are used to stop/pause current thread so that other thread can have an opportunity to acquire CPU and do some wo http://java67.blogspot.com/2012/08/difference-between-yield-and-sleep-in.html