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?

1280

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

1138

When a thread blocks on i/o?

1170

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

1104

Which javutil classes and interfaces support event handling?

1101

What is the immediate superclass of the applet class?

1136

Is “abc” a primitive value?

1159

What is the map interface?

1171

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

1120

What is the difference between the string and stringbuffer classes?

1161

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

1182

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

1061

Difference between swing and awt?

1385

Why do threads block on i/o?

1317

What event results from the clicking of a button?

1314

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Un-Answered Questions { Advanced Java }

How would you create a button with rounded edges?

1239

What are the different approaches to represent an inheritance hierarchy?

1115

What is bean? Where can it be used?

1244

What are the oops concept?

1132

What are the design considerations while making a choice between using interface and abstract class?

1138

What is scalable, portability in the view of J2EE?

2576

What happens when a thread cannot acquire a lock on an object?

1087

what is Activation Instantinator?

2508

Explain how will the struts know which action class to call when you submit a form?

1013

What is aop(assepct oriented programing)?

1119

Are enterprise beans allowed to use thread.sleep()?

1196

What are the services in RMI ?

2443

Difference between new operator and class.forname().newinstance()?

1179

What is Stream Tokenizer?

2322

What is the highest-level event class of the event-delegation model?

1162

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