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Java Interview Questions

These are some Java interview questions. More questions will be added every week or so.



   


  • Java Interview Question: In Java, You can create a String object as below...



  • Java Interview QuestionWhat is the purpose of garbage collection in Java, and when is it used?...

  • Java Interview Question: Describe synchronization in respect to multithreading....



  • Java Interview Question: What is HashMap and Map?...





  • Java Interview Question: What is an Iterator?...




  • Java Interview Question: What is final?...

  • Data Structures: Teddy Bears Puzzle: the game starts when I give you some bears. You can then give back some bears...


  • Data Structures: binary search of the arrayImplement the body of the following function using a binary search of the array... 
  
  • Data Structures: JAVA: Suppose that I have the following declarations...

  • Data Structures: JAVA: What are the steps to inserting a new item at the head...


  • What is the difference between an Interface and an Abstract class?

Solution

 

  • Explain different ways of using thread?

 

Solution

 

 
  • What are pass by reference and pass by value? 

Solution


  • What is the difference between swing and Awt?

Solution


 

  • What is an Iterator? 

Solution

  • What does happen if the main method is declared as private?

Solut