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Java / Collections

What is an iterator?

Iterator is an interface that provides specification for methods to iterate over any Collection.

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List and its implementations

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OOPS Concepts and its implementation in Java 18 Inheritance 29 Java Identifiers 4 JDK, JRE, JVM, JIT 69 Object, Class and Package 44 Variable 9 Local Variables 6 Class Variables (Static Variables) 13 Instance Variables (Non Static Variables) 3 Package 10 Operators 9 Methods 38 Modifiers 29 Data types 10 Control Statements 13 Access Modifiers 5 Constructor 38 Interface 46 Abstract Class 19 Enum 20 Arrays 20 Strings 32 Using String 29 Exception 55 Collections 56 List and its implementations 22 Map and its implementations 39 Set and its implementations 23 Queue and its implementations 4 Regular expressions 3 Design Patterns 75 Generics 20 Casting 5 volatile 13 Java ThreadLocal 10 Java Multithreading 113 Java Multithreading part II 18 final keyword 13 static keyword 16 Concurrent collections 55 Java Serialization 36 JDBC 53 JNDI 17 RMI 6 JAXB 10 JMX 9 log4j 18 Annotations 10 XML 14 Garbage collection 31 Programs 8 JVM 4 Java8 streams 32 JavaFX 6 Autosys 9 The Java Virtual Machine: How and What Is It Used For? Java 11 9 Java 12 5 Top Errors You Should Avoid when Studying Programming Java 17 1

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