Java 8 Optional Class
In Java 8, we have a newly introduced Optional class in java.util package. This class is introduced to avoid NullPointerException that we frequently encounters if we do not perform null…
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Java 8 features with examples
Oracle has released a new version of Java as Java 8 in March 18, 2014. It was a revolutionary release of the Java for software development platform. It includes numerous…
Java concurrency changes from Java8 to Java9
1. New classes and interfaces in java.util.concurrent Two new interfaces and 4 new classes have been added: Java9 Interface for concurrency Interface CompletableFuture.AsynchronousCompletionTask Interface CompletionStage Java9 Classes for concurrency Class…
Exception Handling in Java with 1 or more examples
Table of Contents: Exception Checked and Unchecked Exception in java Checked Exception UnChecked Exception Difference between checked and unchecked exception in java Try Catch and finally block Try with finally…
Sorting using Comparable in java with example
Table of Contents Basic points about the comparable interface. Program to sort on the basis of the name using Comparable. Program to sort on the basis of the id using…
Sorting using Comparator in java with example
Table of Contents Basic points about Comparator interface. Example of sorting using Comparator in java using anonymous class. Example of sorting using Comparator in java implementing Comparator interface. Example of…
TreeMap in java with example
We will cover following points of TreeMap in Java: Basic Points about TreeMap. Different ways to iterate TreeMap in Java. Constructors and methods of TreeMap in Java. Basics of TreeMap…
LinkedHashMap in Java
We will cover following points of LinkedHasMap in Java: Basic Points about LinkedHasMap. Different ways to iterate LinkedHasMap in Java. Constructors and methods of LinkedHasMap in Java. Basics of LinkedHasMap…
HashMap in java
We will cover following points of HashMap in Java: Basic Points about HashMap. Different ways to iterate HashMap in Java. Constructors and methods of HashMap in Java. Basics of HashMap…
TreeSet in Java, TreeSet , TreeSet collection in java
We will cover following points of Treeset in Java: Basic points about TreeSet in Java. Adding user define objects in TreeSet. HashSet vs TreeSet. Constructors of TreeSet in Java. Basics…