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Collection is the main interface and it is the root interface in the … I also recommend you to read java collections tutorial. Hope, these frequently asked tricky Java Interview Questions helped you to make your career brighter. The most basic interfaces that reside in the Java Collections Framework are: Collection, which represents a group of objects known as its … Q1) Which part of the memory is involved in Garbage Collection? The answers to the Core Java interview questions are short and to the point. ArrayList Class in Java Collection Framework. interview questions Java Collections. Java is a collection of objects. It’s the basic Collection framework interview question. A place where you can learn java in simple way each and every topic covered with many points and sample programs. Instance of Java. Implement Queue using Stack. 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