Java Split String with Split() Method [Examples]
The string split() method in Java splits a given string around matches of the given regular expression. To split a string in java into multiple...
Category: JAVA API
Key or Value exists in a Map Check [How To]?
In this tutorial, we will see how to check if Key or Value exists in a Map. Map or HashMap is the java collection class...
How to get user home directory in java for all OS?
How to get user home directory in java is the common question arises while creating Java/Swing GUI applications. You can get home directory of user...
How to convert java.util.Date from java.time.LocalDate?
The following Java code snippet shows how to convert java.util.Date from java.time.LocalDate and vice versa. In the first part of the code snippet we convert java.util.Date from java.time.LocalDate and...
How to get Free, Used and Total Memory in Java ?
As you know that Java does the automatic garbage collection which you need not worry about. However sometime you want to know how large the...
How to convert String to Int in Java ?
To convert String to Int in Java, you can use the below methods of Integer class. Methods to convert String to Int 1) Integer.parseInt() code...
How to generate pseudo-random numbers in Java?
In this post, we will see how to use the pseudo-random number generator in Java. Before that, we will see what is Random numbers. Random...
Java 8 – How to find Date on the day of given Week in a month ?
In this Java 8 program, we will see how to find date on the day of a given week in a month. For example, if...
What is the difference between HashTable and HashMap in Java?
Both HashTable and HashMap are java collections and implements java.util.Map interface. Difference between HashTable and HashMap is the most common interview question. Many of the...
How to Sort a Map by key in Java?
Here we will see how to sort a Map by key in java. There are two ways to sort a Map by Key - First...
How to write Bubble Sort in Java ?
We all have learned sorting techniques in our college academic curriculum. Out of those sorting techniques, the simplest technique we learned is Bubble Sort in...
How To Send a Plain Text EMail in Java using JavaMail API ?
Java Mail API is used to create your own email client. This class provides the code required to model your email client similar to Outlook, Hotmail...
How to use Preferences API to store application/Program configurations ?
Introduction Preferences (Java.util.pref) API is included in JDK can be used to remember and retrieve application preferences. Using this API you can manage preference data...
How to Use File Separator to construct file path in java?
Many java developers might have came across the code where the developer need to use file separator for the file path or directory path. Many...
How to Read UTF-8 data from File in Java ?
Below Java Code shows how to read UTF-8 data from a file or read UTF-8 encoded data from a text file- /**************************************************************************************** * Created on...