Core Java Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java Interview Questions

Questions Answers Views Company eMail

How does JAVA ClassLoader work?

IBM,

1 3546

What is java class writing rules?

Oracle,

1 2530

What are possible key words, we can use to declare a class?

Tech Mahindra,

2 3023

How many types of modifiers are there?

Infosys,

1 2571

What are access modifiers?

Infosys,

1 2584

What are non-access modifiers?

Cognizant,

2 2825

How does access modifiers work?

Wipro,

1 2234

How does static modifier work?

Wipro,

1 2425

How does abstract modifier work?

Wipro,

1 2221

How does synchronized modifier work?

IBM,

1 2327

How does final modifier work?

Tech Mahindra,

1 2651

What are legal modifiers that we can use to declare an inner class?

Infosys,

1 2592

What is difference between “==” and equals()?

IBM,

1 2401

Why do we need to override equals() and hascode() method of object class?

Cognizant,

1 2563

How to override equals() and hashCode() method in java?

Wipro,

1 2427

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Un-Answered Questions { Core Java }

explain local datetime api in java8?

549

Is java pass by value or pass by reference?

532

What are latest features introduced with java 8?

580

What is computer compiler?

523

What is complexity and its types?

518

Why java applets are more useful for intranets as compared to internet?

571

Is string serializable in java?

538

what is the messsage u r going to get from an objectoriented programing?

1600

Can you make a constructor final in Java?

618

What are the important features of Java 10 release?

506

What is better- service oriented or batch oriented solutions?

1517

What is string pooling concept?

543

What is a void in java?

570

How is a variable stored in memory?

519

Why char array is favored over string for the storage of passwords?

551

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