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 are the types of strings?

1038

What is the difference between char and char *?

1086

What is ph and buffers?

1009

Is char * a string?

998

Is hashmap thread safe?

1006

Is stringwriter thread safe?

1006

How do you use find and replace?

965

What is integer valueof?

1122

Why string is immutable with example?

987

What is the difference between replace and replace all?

1030

What is indexof?

992

How do you define a variable?

950

What is the difference between and ?

1024

What is regex used for?

998

What is a subsequence of a string?

1073

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Un-Answered Questions { Core Java }

Can we create our own wrapper class in java?

979

How do you bind variables?

1114

What value is a variable of the string type automatically initialized?

1117

What is parsing a sentence?

1084

What is 32 bit float?

1003

What is the purpose of nested class in java?

1095

What does regex mean?

1021

What is the purpose of static keyword in java?

968

How do you identify independent and dependent variables?

1012

What is difference in between java class and bean?

1102

What is the simpletimezone class in java programming?

1136

Can you explain the meaning of aggregation and composition

1012

Can we assign the reference to this variable?

983

What is jit compiler ?

987

What are the important features of Java 10 release?

997

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