Argano Software Technical Consultant Interview Questions and Answers

Arrays, Strings, Linked List and Dynamic Programming

Q1. Top features of Java
Ans. 
Some top features of Java include platform independence, object-oriented, robust, secure, and multithreaded.
• Platform independence - Java code can run on any platform that has a Java Virtual Machine (JVM)

• Object-oriented - Java supports the principles of object-oriented programming

• Robust - Java is designed to eliminate error-prone situations by emphasizing compile-time error checking and runtime checking

• Secure - Java pro...read more
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Q2. What is copy constructer in java
Ans. 
A copy constructor in Java is a special type of constructor that creates a new object by copying the values of an existing object.
• Copy constructor is used to create a new object with the same values as an existing object.

• It is typically used to create a deep copy of an object.

• The copy constructor has the same name as the class and takes an object of the same class as a parameter.
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Q3. Can you implement pointer in java
Ans. 
No, Java does not support pointers like in languages such as C or C++.
• Java uses references instead of pointers

• References in Java point to objects on the heap

• Example: String str = new String("Hello");
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