Java Byte[] Array To String Conversion

In this tutorial, I am showing how to convert byte[] array to string using java.

Note: Here we are creating a new String new String(bytes, "UTF-8"); with utf-8 encoding, toString() method of String will not return the actual string but return the hash code of that string.

Find Last Element Of A Stream

In this tutorial, here I am showing how to find the last element from a stream in java.

Note: we are using stream.reduce function for finding the last element of a stream in java. Stream.reduce method always returns Optional value, so you have to decide what to do when empty element is returned.

C++ vs Java vs Python a comparison

C++, Java, and Python; these are undoubtedly 3 of the most preferred programming languages in the present times. Pick up any top programming languages list and you’re going to see each of the trio securing their place on it. However, if you’re to choose a winner among the three? Which one will it be? Obviously, this isn’t a question with a concrete answer.

Each one of the triad, C++, Java, and Python, has their own advantages and issues that they call forth with their use. C++ is preferred for its speed and memory management, while Java’s platform independency makes it an opportune option for cross-platform development. Python, on the other hand, is more like a human language with high readability, less complex syntax, and an active community support.

Choosing among C++, Java, and Python depends on the specific requirements that a programming task calls for. Personal preference is yet another parameter that adds value to each of the 3 options. Typically, it is advised to stick to a preferred programming language until one gets adequately adept in the same. Before advancing with the dissimilarities of C++, Java, and Python, let’s first have a brief review of their important aspects:

Merge Streams In Java

In this tutorial, I am showing how to merge multiple streams in java using different ways.

Note: Stream.concat(stream1,stream2) method is useful when you have 2 streams and if you have more than 2 streams, you can use Stream.of(stream1, stream2, stream3, stream4) method.



Getting Mime type in Java

In this tutorial, I am showing how to get mime type of a file in java using Java 7 Files and URLConnection class.

You can select right one from the below listed, which suits your needs.


Java Iterating Over Enum values

In this tutorial, I am showing about enums iteration using different ways like forEach, stream and for loop.

A Java enum is a special data type which helps you to assign set of predefined constants to a variable

Java 8 findFirst() vs findAny()

In this tutorial, I am showing the differences between findFirst() and findAny() methods of java 8 stream api and where it can be used.

Note: As per the stream documentation “Streams may or may not have a defined encounter order. Whether or not a stream has an encounter order depends on the source and the intermediate operations. Certain stream sources (such as List or arrays) are intrinsically ordered, whereas others (such as HashSet) are not”.

Send Email Using Java

In this tutorial, I am showing how to send an email using JavaMail API. Sending email is a required use case for every project.

Here I am using gmail host( smtp.gmail.com) and gmail username and password for authentication. For a bigger projects, you have to use paid mail service provider and they will provide the required information like host and port parameters.

Here I am explaining following topics with complete examples

a) Sending plain text Email with JavaMail API

b) Sending HTML email with JavaMail API

c) Sending email attachment with JavaMail API