EY Global Delivery Services ( EY GDS) Java Developer Interview Questions and Answers

Q1. What are the design patterns you know in java
Ans. 
Design patterns in Java are reusable solutions to common problems in software design.
• Creational patterns (e.g. Singleton, Factory, Builder)

• Structural patterns (e.g. Adapter, Decorator, Facade)

• Behavioral patterns (e.g. Observer, Strategy, Template Method)
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Q2. What is daimond problem
Ans. 
The diamond problem occurs in multiple inheritance when a class inherits from two classes that have a common ancestor, leading to ambiguity in method invocation.
• Diamond problem arises in multiple inheritance when a class inherits from two classes that have a common ancestor.

• It leads to ambiguity in method invocation as the compiler cannot determine which inherited method to invoke.

• Example: Class A has a method 'display...read more
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Q1. Interfaces and stream coding questions were asked
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Q2. New features added in Java 11,java 8 features, so many questions from oops, Hashmap coding questions were asked, annotations of spring boot were asked
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Q3. Dependency injection
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Q1. Same questions but they were asked about every topic in detail, better to prepare all the topics in detail.
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They have asked one coding Questions , and i have done also help of JAVA8 but he said do by JAVA 7 with DSA , I am very disappointed .

Q1. Deep in Collections, Java 8 features, Arrays, Exceptions
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