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Frequently Asked Java interview questions and answers for freshers Page 19

(#M40029401) JAVA QUESTION java Keep an EYE

Q. How do you set security in applets?

A. using setSecurityManager() method

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(#M40029400) JAVA QUESTION java Keep an EYE

Q. What is the lifecycle of an applet?

A.
init() method - Can be called when an applet is first loaded
start() method - Can be called each time an applet is started.
paint() method - Can be called when the applet is minimized or maximized.
stop() method - Can be used when the browser moves off the applet’s page.
destroy() method - Can be called when the browser is finished with the applet.

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(#M40029398) JAVA QUESTION java Keep an EYE

Q. What is deadlock?

A. When two threads are waiting each other and can't precede the program is said to be deadlock.

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(#M40029397) JAVA QUESTION java Keep an EYE

Q. What is synchronization?


A. Synchronization is the mechanism that ensures that only one thread is accessed the resources at a time.

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(#M40029395) JAVA QUESTION java Keep an EYE

Q. What is an abstract class?

A. An abstract class is a class designed with implementation gaps for subclasses to fill in and is deliberately incomplete

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(#M40029391) JAVA QUESTION java Keep an EYE

Q. What is the difference between a JDK and a JVM?

A. JDK is Java Development Kit which is for development purpose and it includes execution environment also. But JVM is purely a run time environment and hence you will not be able to compile your source files using a JVM.

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(#M40018972) JAVA QUESTION Advanced JAVA questions Keep an EYE

what is e-commerce?

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(#M40018971) JAVA QUESTION Advanced JAVA questions Keep an EYE

What you mean by COM and DCOM?

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(#M40018969) JAVA QUESTION Advanced JAVA questions Keep an EYE

What do you mean by Socket
Programming?

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(#M40018968) JAVA QUESTION Advanced JAVA questions Keep an EYE

What is ODBC and JDBC? How do you
connect the Database?

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