Below we have listed all the Java Interview Questions and answers. Feel free to comment on any Java Interview Questions or answer by the comment feature available on the page.
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Java is a programming language and computing platform first released by Sun Microsystems in 1995. There are lots of applications and websites that will not work unless you have Java installed, and more are created every day. Java is fast, secure, and reliable. Java is a programming language expressly designed for use in the distributed environment of the Internet. It was designed to have the "look and feel" of the C++ language, but it is simpler to use than C++ and enforces an object-oriented programming model.
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what happens if we execute the program? class Return{ int display(){ try{ return 1; } finally{ return 2; } } public static void main(String args[]){ Return r=new Return(); r.display(); } } |
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Does garbage collection guarantee that a program will not run out of memory? | 
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What is Servlet API used for conneting database |
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Whether private,protected method can be overloaded,overrided or not?Tell me reason? |
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What is typecasting? |
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What happens when you add a double value to a String? |
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How are Observer and Observable used? |
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What is the difference between Java and J2EE? Is J2EE advanced version of Java? |
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How We Can We write our own exceptions? |
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How will you communicate between two Applets? |
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How does multithreading take place on a computer with a single CPU? |
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How are the elements of a GridLayout organized? |
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Tell me the latest versions in JAVA related areas? |
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What is JAR file |
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In which package are most of the AWT events that support the event-delegation model defined? |
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In servlets, we are having a web page that is invoking servlets username and password. which is cheks in the database, Suppose the second page also. If we want to verify the same information whether it will connect to the database or it will be used previous information? |
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What methods are used to get and set the text label displayed by a Button object? |
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A Inner class is defined in a parameterized function of outer class then the inner class is able to access the parameters of that function? |
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What is the difference b/w Iterator & ListIterator |
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What is meant by Session, Tell me something about HTTPSession Class? |
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