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 is threadfactory?

1100

How substring() method of string class create memory leaks?

1046

Do you think that java should have had pointers?

1058

Why is string immutable in java?

1100

Can constructors be synchronized in java?

1126

What is a class loader? What are the different class loaders used by jvm?

1105

What are various types of class loaders used by jvm?

1000

Is jvm a overhead?

1102

What is the difference between long.class and long.type?

1111

What is the difference between system.out ,system.err and system.in?

1106

What is a class loader?

5 1910

Explain the different types of memory used by jvm?

1146

Which are the different segments of memory?

1083

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

1135

What is metaspace?

1031

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Un-Answered Questions { Advanced Java }

What is the immediate superclass of the applet class?

1088

Which class is the immediate superclass of the menucomponent class?

1203

Which javutil classes and interfaces support event handling?

1046

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

1051

How a component can be placed on Windows?

2857

How database connectivity in XML is achieved?

2242

When a thread blocks on i/o?

1099

Why a client should be multithreading? Explain.

1089

When is the best time to validate input?

1105

Write a singleton program?

1047

What is a policy?

2305

What is the difference between the ‘font’ and ‘fontmetrics’ class?

1159

Difference between swing and awt?

1298

What is the difference between system.out ,system.err and system.in?

1106

What is jboss?

1038

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