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 differences between constructor and method of a class in Java?

1 880

How do you use final keywords and final variables in Java?

2 660

In Java, what types of classes perform inheritance?

2 683

What types of inheritance does Java support?

2 684

What is Java exception handling?

1 626

What are the differences between unchecked exception, checked exception, and errors?

2 855

What are the types of loops in Java, and how are they used?

2 630

How do you declare an infinite loop?

2 733

What is the difference between the continue and break statement?

2 693

What is the entry point in Java, and how is it written?

2 708

In Java, what are public static void main string args?

2 692

In Java, what’s the purpose of static methods and static variables?

2 716

How do you use, call, and access a static method in Java?

2 751

How do you use, call, and access a non-static method in Java?

2 690

In Java, what are this() and super(), and where are you required to use them?

2 660

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Un-Answered Questions { Core Java }

What do you mean by local class?

952

What are the important methods of java exception class?

1024

What do you mean by formatting?

937

Where is const variable stored?

886

What is getclass () getname () in java?

1093

What is an array in java?

1126

Why is an interface be able to extend more than one interface but a class can’t extend more than one class?

1109

How to retrieve data from database in java using arraylist?

991

What is the static variable?

1049

What technique can be employed to compare two strings?

1021

How do you override a method in java?

950

What makes a function well defined?

937

Explain about OOPS concepts and fundamentals.

996

what is the difference between preemptive scheduling and time slicing? : Java thread

973

What is ph and buffers?

937

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