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 Vector class?

2 6250

What are virtual methods?

TCS,

1 4752

What method is used to know the status of Checkbox(i.e it is checked or unchecked)?

1 4654

What are advantages of using Java?s layout managers than windowing systems?

1 2459

What are Access Specifiers and Access Modifiers.

TCS,

6 22291

What are E and PI?

1 4807

What are listeners in java and explain ?

TCS,

2 8847

What are packages and name a few?

4 6738

primitive data types in Java ?

3 7054

What problems will occur when you don?t use layout managers?

1 3699

What are the limitations for static method?

Greenwood,

3 31767

What are the restrictions imposed by a Security Manager on Applets?.

1 2673

Name the runtime exceptions that occurs frequently?

4 7362

What services that container provides?

2 5324

Name the types of 'priority'?

2 8242

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Un-Answered Questions { Core Java }

What is a classloader in java?

1080

What is a constructor overloading in java?

1119

What is the difference between equals() and == in java?

1028

What is java string pool?

1071

explain different ways of using thread? : Java thread

1072

What is an object in java and how is it created?

1120

Write a program to find the whether a number is an Armstrong number or not?

1093

Explain public static void main(string args[]) in java.

1061

Write a java program to find the route that connects between Red and Green Cells. General Rules for traversal 1. You can traverse from one cell to another vertically, horizontally or diagonally. 2. You cannot traverse through Black cells. 3. There should be only one Red and Green cell and at least one of each should be present. Otherwise the array is invalid. 4. You cannot revisit a cell that you have already traversed. 5. The maze need not be in the same as given in the above example

2657

What is the difference between break and continue statements?

1113

Is minecraft 1.15 out?

1032

Write a program to print count of empty strings in java 8?

1077

What are the differences between heap and stack memory in java?

1121

What do you mean by an interface in java?

1091

What is parsing in java?

1022

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