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

Core Java Interview Questions

Questions Answers Views Company eMail

Difference between Array and vector?

9 29846

What is the difference between C++ & Java?

College School Exams Tests, HAL, SUN, Syntel, TCS, Wipro,

78 179144

Differences between GridLayout and GridBagLayout?

1 21504

What is the difference between Integer and int?

Infosys,

10 30167

Difference between Reader/Writer and InputStream/Output Stream?

Adobe, Kirusa, Verizon,

9 64462

Difference between String and String Buffer?

3 8573

What is the difference between Trusted and Untrusted Applet ?

IBM,

2 11405

Difference between a Canvas and a Scroll Pane?.

NIIT,

1 5138

Difference between Choice and a List?

1 20062

Difference between a MenuItem and a CheckboxMenuItem?

1 8998

What are concepts of OOPS and how are they implemented in Java?

KPIT,

2 8317

What are different types of Exceptions?.

9 38061

What are hot spots in Java programming?

1 6811

What are interfaces?

3 5150

What are invisible components?.

2145

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Un-Answered Questions { Core Java }

What is update method called?

1157

Explain about varargs in java?

1130

Why do we need variables?

988

What is callablestatement? How you can call stored procedure to pass in parameter?

1025

How hashmap increases its size in java?

989

Explain about field hiding in java?

945

What is purpose of keyword void?

1049

What is a platform?

1076

Is java ee a framework?

986

How do you convert an int to a double in java?

1062

How many types of keywords are there?

994

How do you implement tree mirroring in java?

1077

What are the library functions in java?

1045

How many types of threads are there in java?

1059

What is == mean?

998

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