Sort with given object multiple properties names, age using JAVA8

List can be sorted using Java 8 Lambda Expressions, moving right past syntactic sugar and into real and powerful functional semantics. The implementation of all of these examples and code snippets can be found over on gitHub: https://github.com/ramanujadasu/tutorials/tree/master/core-java-modules/core-java-lambdas List<Human> humans = Lists.newArrayList( new Human("Sarah", 10), new Human("Jack",...

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Custom Marker Interface Implementation in Java

Marker interface has no method. Java has built-in marker interface like Serializable, Cloneable & Event Listener etc that are understand by JVM.We can create our own marker interface, but it has nothing to do with JVM, we can add some checks with instanceOf. Create the empty interface 
interface Marker{ } Write a class and implements the interface 
class A implements Marker { //do some...

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Can we use return statement in finally block in java?

Bellow program output is always 2, as we are returning 2 from the finally block. Remember the finally always executes whether there is a exception or not. So when the finally block runs it will override the return value of others. Writing return statements in finally block is not required, in fact you should not write it.  public class Test { public static int test(int i) { try { if (i == 0) ...

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Given strings are Anagram or not?

Write a function to check whether two given strings are anagram of each other or not. An anagram of a string is another string that contains same characters, only the order of characters can be different. For example, “abcd” and “dabc” are anagram of each other. We strongly recommend that you click here and practice it,...

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Given String is Pangram or not?

Given a string check if it is Pangram or not. A pangram is a sentence containing every letter in the English Alphabet. Examples : The quick brown fox jumps over the lazy dog ” is a Pangram [Contains all the characters from ‘a’ to ‘z’] “The quick brown fox jumps over the dog” is not a Pangram [Doesn’t contains all the characters from ‘a’ to ‘z’, as ‘l’, ‘z’, ‘y’ are missing] Recommended: Please solve it on “PRACTICE ” first,...

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JAVA9: JSHELL (jshell) tool will be a command-line tool

In this article we will discuss about jshell(Java Shell) Java 9 feature. We can explore jShell with JDK 9 Early Access Release.  As of now the general availability of JDK9 is scheduled to 27th July, 2017. The jShell feature is proposed as part of JEP 222. The motivation behind jshell is to provide interactive command line tools to explore the features of java quickly. It is very useful tool...

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Difference between SLF4J and LOG4J

SLF4J is basically an abstraction layer. It is not a logging implementation. It means that if you're writing a library and you use SLF4J, you can give that library to someone else to use and they can choose which logging implementation to use with SLF4J e.g. log4j or the Java logging API. It helps prevent projects from being dependent...

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