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 unicode datatype?

985

What is a flag variable?

983

What is r * in math?

1015

What is the biggest integer?

1074

What does += mean coding?

947

What is the meaning of flag day?

1042

What is the size of an array?

1049

What is a double?

1115

What is the maximum length of a url?

983

What is the use of flag?

1107

How many bytes is a unicode character?

1016

What is the largest number a double can hold?

1057

How many characters is 2 bytes?

1010

Is array a class?

956

What is public static void main?

1123

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Un-Answered Questions { Core Java }

Can a final variable be initialized in constructor?

988

Which java ide is used the most?

1026

What is classes in java?

954

What is string substring?

1187

What are different access specifiers in java?

1034

Write a method to check if input string is palindrome?

1034

java program with complete 4 oops concepts implemented example

3168

What is a local block?

1159

How does hashset work in java?

1140

Can we create our own wrapper class in java?

989

How do you check if a string contains only numeric digits?

1139

Can we serialize arraylist in java?

1028

Can you tell me range of byte?

1011

What is the generic class?

993

What is static keyword?

1169

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