Reserve Bank Information Technology Java Developer Interview Questions, Process, and Tips

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Q1. OOPS, Exception Handling, Collections, Arrays, Strings
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Q2. What is Interface
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Interface in Java is a reference type, similar to a class, that can contain only constants, method signatures, default methods, static methods, and nested types.
• Interfaces are used to define a contract for classes that implement them.

• Classes can implement multiple interfaces in Java.

• Interfaces cannot have instance fields, constructors, or non-static methods.

• Example: interface Shape { void draw(); }

• Example: class Circle...read more
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Q3. What is Abstractin
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Abstraction is a concept in object-oriented programming where only relevant data is shown to the user while hiding unnecessary details.
• Abstraction helps in simplifying complex systems by only showing essential features.

• It allows for creating abstract classes and interfaces in Java.

• Example: In a car, the driver only needs to know how to drive it without understanding the internal workings of the engine.
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Q4. Explain about Exception and Exception handling
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Exceptions are unexpected events that disrupt the normal flow of a program. Exception handling is the process of dealing with these events.
• Exceptions are objects that represent an abnormal condition or error in a program.

• Exception handling allows developers to gracefully handle errors and prevent the program from crashing.

• Java provides try-catch blocks for handling exceptions. The try block contains the code that may t...read more
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Q5. Explain Arrays and Strinds
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Arrays are a collection of elements of the same data type, while Strings are a sequence of characters.
• Arrays can store multiple values of the same data type, accessed by index.

• Strings are immutable sequences of characters, can be manipulated using various methods.

• Example: int[] numbers = {1, 2, 3}; String name = "John";
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The codinds questions were too easy.

Q1. Cover the OOPS, Exception Handling, Collections,Arrays, Strings
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18 non technical MCQ question with Aptitude, English

Q1. Check Palindrome
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A palindrome is a word, phrase, number, or other sequence of characters that reads the same forward and backward.
• Create a function to check if a given string is a palindrome.

• Remove all non-alphanumeric characters and convert the string to lowercase before checking.

• Compare characters from both ends of the string to determine if it is a palindrome.
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Q2. Compare the object using Instance of Keyword
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Instance of keyword is used to compare an object to a specified class type.
• Instance of keyword returns true if the object is an instance of the specified class.

• It can be used to check if an object is of a specific class type before casting.

• Example: if(obj instanceof String) { // do something }
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Q3. Method overloading and Method Overriding program
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Aptitude, logical, verbal , technical - java, spring, hibernate, sql - MCQS.

Q1. Basic java, springboot, spring security questions, based on resume
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Q1. Manager round, technical
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