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

Java J2EE (14736)
J2ME (151)
Java Related AllOther (507)

Java Related Interview Questions

Questions Answers Views Company eMail

Explain OOPs concept.

Syntel, Visa,

1159

Explain polymorphism citing an example.

Amazon,

1103

What are exceptions

Futures First,

1155

What is command line argument

TCS,

1246

What is the difference between delete and delete[]

Amazon,

3 1658

What is the difference between the Reader/Writer class hierarchy and the InputStream/OutputStream class hierarchy?

1178

What is the purpose of the System class?

1049

Explain about oops concepts.

Aditi Placement Service,

1177

Difference between string s= new string (); and string s = "abv";?

Cap Gemini,

1266

Explain about complier design(phases)

Aditi Placement Service,

1141

Explain about doubly linked list

Aditi Placement Service,

1098

What is compiler and what its output.

Cognizant,

1204

What is runtime locatable code?

Cognizant,

1506

What restrictions are placed on method overriding?

1248

What is an array in java?

1291

Un-Answered Questions { Java Related }

How many inner classes can a class have?

1094

How many modules are there in spring? What are they?

482

What is deque in the java collections framework? : java collections

1120

What is garbage collection? Can it be forced to run?

1066

What does method mean?

1138

What is the return type of class.forname() method?

1006

Can we use string in switch case in java?

1138

What do you understand by @autowired annotation?

478

what is an isolation level?

2803

How can link tag’s action attribute be used?

1003

Which design pattern is implemented by Struts2 interceptors?

1070

What is meant by servlet? What are the parameters of the service method?

1101

Differentiate between vector and array list.

1118

Can we write a class without main method in java?

1004

What are the benefits of Interceptors in Struts2?

1219

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