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

Core Java Interview Questions

Questions Answers Views Company eMail

What is method overloading in java ?

1163

Can we catch more than one exception in single catch block?

1125

Can we rethrow the same exception from catch handler?

1174

Explain restrictions for using anonymous inner classes?

1145

What is the purpose of nested class in java?

1141

List java api that supports threads?

1 1884

Explain about anonymous inner classes in java?

1148

When do we use synchronized blocks and advantages of using synchronized blocks?

1283

Can we have a method name same as class name in java?

1102

What are different types of multitasking?

1011

What are checked exceptions?

1083

What is ‘has a’’ relationship in java?

1282

Explain different types of thread priorities ?

1140

Explain the importance of finally over return statement?

1118

Explain the importance of thread scheduler in java?

1066

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Un-Answered Questions { Core Java }

How many characters is 2 bytes?

1045

What is the difference between replace and replace all?

1080

How to sort an array in java without using sort method?

940

What do you understand by java?

1051

Can java object be locked down for exclusive use by a given thread?

1061

How is string stored in java?

1124

Explain tree set and its features?

1116

What state is a thread in when it is executing?

1034

Can a static method be final?

1114

Why do we use return statement?

1108

What is the difference between Java1.4 and Java1.5

2395

Explain about doubly linked list

1098

Is Constructor possible in abstract class in java ?

1122

What is difference between array and arraylist in java?

1040

Is it possible to specify multiple jndi names when deploying an ejb?

1057

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