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Java Interview Questions & Answers

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 Interview Questions & Answers

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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Why do you create interfaces, and when MUST you use one?
3.7 Rating
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Why Java is not fully object oriented?
4.0 Rating
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How System.out.println() works?

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What is Singleton class?
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What is the disadvantage of threads?


3.4 Rating
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How many different types of JDBC drivers are present? Discuss them.
4.1 Rating
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What is difference between & and && in java

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Access specifiers: "public", "protected", "private", nothing?
4.2 Rating
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IBM Interview Questions in Bangalore

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How to make application thread-safe ?
3.7 Rating
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Explain working of Java Virtual Machine(JVM).


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Why we can not override static method?

3.7 Rating
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Why Java is case sensitive?
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Explain Servlet and JSP life cycle

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What is the difference between instanceof and isInstance?
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How will you pass values from HTML page to the Servlet?
3.9 Rating
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What is the difference between length and length() ?
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Can I execute or call one applet from another applet? If so then how??? Please Reply me...
Thanks
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What are the main differences between
jdk1.4 n jdk1.5?
3.7 Rating
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What is package? Define with example?
3.7 Rating
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