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Core Java Interview Questions
Questions Answers Views Company eMail

What is a hashmap used for?

1303

What is the new line character?

1231

Where is the find and replace?

1056

What is string pooling concept?

1149

What is parseint?

1069

Does substring create a new object?

1046

What is charat ()?

984

What is the r character?

1075

How do you declare a variable?

1138

What does int argc char * argv [] mean?

1048

How do you change an int to a string?

1058

How do you escape a string?

1035

What is difference between filereader and bufferedreader?

1007

What does indexof mean?

1101

What is the use of bufferedreader?

1045


Post New Core Java Questions

Un-Answered Questions { Core Java }

Write down program for following scenario. Use java coding standard. You have array list with some words in it..we will call it as dictionary….and you have a arbitrary string containing some chars in it. You have to go through each word of dictionary and find out if that word can be constructed with the help of chars from arbitrary string given. If you find the word print it else print none.

2781


Why singleton class is used in java?

1191


What are the five major types of reference sources?

1189


Is it possible to override the main method?

1039


What is an empty class? What functionality does it offer in Java?

1342


What is enhanced loop in java?

1044


What is a platform?

1153


Why is string builder not thread safe?

1117


How to check if linked list contains loop in java?

953


Can I import same package/class twice?

1006


What is keyword auto for?

1250


What are different types of multitasking?

1003


How can we access some class in another class in java?

1051


What are "methods" and "fields"?

1065


What is map and hashmap in java?

1113