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 26861

What is the difference between C++ & Java?

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

78 156852

Differences between GridLayout and GridBagLayout?

1 20302

What is the difference between Integer and int?

Infosys,

10 26715

Difference between Reader/Writer and InputStream/Output Stream?

Adobe, Kirusa, Verizon,

9 60883

Difference between String and String Buffer?

3 7391

What is the difference between Trusted and Untrusted Applet ?

IBM,

2 10134

Difference between a Canvas and a Scroll Pane?.

NIIT,

1 3910

Difference between Choice and a List?

1 18793

Difference between a MenuItem and a CheckboxMenuItem?

1 7713

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

KPIT,

2 7048

What are different types of Exceptions?.

9 34817

What are hot spots in Java programming?

1 5991

What are interfaces?

3 3903

What are invisible components?.

1663

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Un-Answered Questions { Core Java }

Explain the differences between static and dynamic variables?

566

What happens if we don’t override run method ?

554

What are different types of references?

515

What are inbuilt functions in java?

549

Explain the difference between intermediate and terminal operations in java8?

549

Which are different kinds of source code?

644

Why is java logo a cup of coffee?

608

Is java map thread safe?

479

How does singleton class work?

513

How do I know if java is installed?

502

What is meant by nested loop?

528

Can we override private methods?

525

What is the applet security manager, and what does it provide?

525

Is arraylist a class in java?

517

Can you write a java class that could be used both as an applet as well as an application?

501

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