Top 100+ questions and answers in JAVA

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Q: What is class in Java?

answered Oct 27 in JAVA

Q: What is a constructor in java?

answered Oct 27 in JAVA

Q: What is object in java?

answered Oct 27 in JAVA

Q: How to create object in java?

answered Oct 27 in JAVA

Q: What is oops in java?

answered Oct 27 in JAVA

Q: Who executes the byte code in java?

answered Oct 27 in JAVA

Q: What are the features that makes Java Secure, Security APIs?

answered Oct 27 in JAVA

Q: Why java does not support multiple inheritance?

answered Oct 27 in JAVA

Q: Why we can’t create the object of abstract class in java?

answered Oct 27 in JAVA

Q: How to achieve Constructor Overloading in Java with examples

answered Oct 27 in JAVA

Q: Types of inheritance in Java: Single,Multiple,Multilevel & Hybrid

answered Oct 27 in JAVA

Q: Constructors in Java With Examples 2020

answered Oct 27 in JAVA

Q: what is the advantage of Singleton Design Pattern in Java?

answered Oct 27 in JAVA

Q: finalize() method in Java and how to override it in Java

answered Oct 27 in JAVA

Q: Encapsulation in Java with example [updated 2020]

answered Oct 27 in JAVA

Q: Abstraction in Java Abstraction with Example

answered Oct 27 in JAVA

Q: If a child class inherits base class then are the constructor of the base class also inherited by the child class?

answered Oct 27 in JAVA

Q: Super Keyword in Java

answered Oct 27 in JAVA

Q: How do we achieve encapsulation in java?

answered Oct 27 in JAVA

Q: Write a program to convert decimal numbers to octal.

answered Oct 24 in JAVA

Q: Which utility function can be used to extract characters at a specific location in a string?

answered Oct 24 in JAVA

Q: How to get the length of a string in java?

answered Oct 24 in JAVA

Q: Which of the following syntax for defining an array is correct?

answered Oct 24 in JAVA

Q: Write a program to do bubble sort on an array in java.

answered Oct 24 in JAVA

Q: Write a program to generate the following output in java?

answered Oct 24 in JAVA

Q: Write a program to generate the following output.

answered Oct 24 in JAVA

Q: Write a program in java to remove all vowels from a string.

answered Oct 24 in JAVA

Q: How to Write a program in java to check for palindromes.

answered Oct 24 in JAVA

Q: How the underlying mechanism in java’s built-in sort?

answered Oct 24 in JAVA

Q: Which utility function is used to check the presence of elements in an ArrayList?

answered Oct 24 in JAVA

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