Advanced Java Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Advanced Java Interview Questions

Questions Answers Views Company eMail

What must a class do to implement an interface?

1199

What value does readline() return when it has reached the end of a file?

1088

When a thread blocks on i/o?

1099

Which characters may be used as the second character of an identifier, but not as the first character of an identifier?

1051

Which javutil classes and interfaces support event handling?

1046

What is the immediate superclass of the applet class?

1088

Is “abc” a primitive value?

1111

What is the map interface?

1125

What state does a thread enter when it terminates its processing?

1065

What is the difference between the string and stringbuffer classes?

1103

Which textcomponent method is used to set a textcomponent to the read-only state?

1134

What restrictions are placed on the values of each case of a switch statement?

1020

Difference between swing and awt?

1298

Why do threads block on i/o?

1261

What event results from the clicking of a button?

1251

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Un-Answered Questions { Advanced Java }

What is the map interface?

1125

How database connectivity in XML is achieved?

2242

What is a class loader?

1909

What is aop(assepct oriented programing)?

1064

Which javutil classes and interfaces support event handling?

1046

Name three component subclasses that support painting?

1081

Why use POJO when I can use hashmap

2652

What is the difference between ear, jar and war file?

1139

Why use a datasource when you can directly specify a connection details?

1033

When is the best time to validate input?

1105

Describe, in general, how java's garbage collector works?

1039

Do you think that java should have had pointers?

1058

What is the difference between session and entity beans?

1116

Explain the steps in details to load the server object dynamically?

5108

In our urls and in the text of the buttons we have comma. Its causing an error. Is there a way to change the delimiting character for the menu arguments?

1182

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