Java Interview Questions

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how many types of memory area are allocated by java virtual machine ?

Raj
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3

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What is the difference between JRE, JVM and JDK?

Rahul Verma
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5

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What is Java FX?

Jainish Shah
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3

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Why use string handling in Java?

Taufique Sekh
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3

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Why Java take 2 byte of memory for store character ?

Taufique Sekh
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3

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What is IOC and DI?

Ashraf Wani
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5

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What is an exception? difference between Checked and Unchecked exception in Java

Satheesh Reddy
11y Reply
3

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Difference between String, StringBuffer, and StringBuilder in Java

Satheesh Reddy
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3

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What is the difference between Hashtable and hashmap in Java

Satheesh Reddy
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2

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What is the difference between ArrayList and Vector? which one is better in Java

Satheesh Reddy
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2

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What all the collection framework classes you have used in your application in Java

Satheesh Reddy
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15

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How will achieve multiple inheritance using interfaces in Java

Satheesh Reddy
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3

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Can you give some real time example where you have used an interface and abstract class in Java

Satheesh Reddy
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2

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What is the difference between abstract class and an interface in Java

Satheesh Reddy
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3

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What is a singleton class in Java

Satheesh Reddy
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