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

Core Java Interview Questions

Questions Answers Views Company eMail

How do I get a substring?

978

What is basic syntax?

1038

Is integer a class?

1080

Why is string builder not thread safe?

1063

What is the instance of an object?

1195

Is string a wrapper class?

1016

What is the generic function?

986

Is string an object?

1118

How do you replace all in word?

1066

How do you know if a value is nan?

1059

Does printwriter create a file?

958

How do you use wildcards?

1061

What is difference between string and stringbuffer?

1104

What are the special characters?

970

What does it mean that strings are immutable?

1128

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Un-Answered Questions { Core Java }

How many types of assembly languages are there?

972

Can we overload the methods by making them static?

1001

Can you call a method on a null object?

1011

Difference between predicate, supplier and consumer ?

1060

Can a vector contain heterogenous objects?

1076

When is the garbage collection used in Java?

1202

What does += mean coding?

933

How do you input a string in java?

1079

What is sorting in java?

986

What is tree in java?

919

Differences between traditional programming language and object oriented programming language?

1123

What is meant by collection in java?

1075

What are the different access modifiers available in java?

1044

Does A Class Inherit The Constructors Of Its Superclass?

1076

What is io stream in java?

1058

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