IBM Interview Questions, Process, and Tips for Experienced

Q1. Reverse the string (code in java )
Ans. 
Reverse a string in Java using StringBuilder or character array.
• Use StringBuilder's reverse() method to reverse the string.

• Alternatively, convert the string to a character array, swap characters from start and end, then convert back to string.
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Q2. SQL query to find max salary in different areas of employee
Ans. 
Use SQL query to find max salary in different areas of employee
• Use GROUP BY clause to group employees by area

• Use MAX() function to find the maximum salary in each group

• Combine GROUP BY and MAX() to get the desired result
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Q1. Roles and Responsibilities as Business Analyst, Details of Mapping Specification Document, Design Document, Agile Way etc...
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Q1. With HR and Project manager again, it was totally on cloud.
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Q1. About your prior work experience
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Q2. About your future plans.
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Q1. Core Java interview questions
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Q1. Overall project experience
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Q1. Tell me about your self Self introduction
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About assignment Related question on Facilities Admin what is MSDS, PPE, Excel word PPT templates and others

Q1. About MPO Vendor management fire extinguisher chemical VIP Guest building maintenance
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Q1. Xception handling
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Q2. Collections in java
Ans. 
Collections in Java are data structures that store and manipulate groups of objects.
• Collections framework provides interfaces (List, Set, Map) and classes (ArrayList, HashSet, HashMap) for storing and manipulating data.

• Collections offer methods for adding, removing, and accessing elements in a structured manner.

• Collections can be used to store objects of any type, including custom objects.

• Example: ArrayList names = new...read more
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Q1. Explain exception handling
Ans. 
Exception handling is a mechanism to handle errors or exceptional situations in a program.
• It allows the program to gracefully handle errors without crashing.

• Exceptions can be caught and handled using try-catch blocks.

• Common exceptions include NullPointerException, ArrayIndexOutOfBoundsException, and IOException.

• Exception handling helps in debugging and maintaining code.

• It separates error-handling code from normal code
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Q2. Hashmap working in collections
Ans. 
HashMap is a data structure in Java that stores key-value pairs and provides fast retrieval of values based on keys.
• HashMap is part of the Java Collections framework.

• It allows null keys and values.

• HashMap uses hashing to store and retrieve elements efficiently.

• Example: HashMap map = new HashMap<>();
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