Java Tutorials


Java 9- Creating Collection using Factory Method of(…)

Java 9 introduced static factory method of(...) to create the unmodifiable collection instance for the List, Set, and Map. It […] Continue reading »

Get all available Currency code and name in Java

In Java, getAvailableCurrencies() is a static method of Currency class that returns all available currencies. Currency class is inside the […] Continue reading »

Java 8- Find the Average of List of Integers

In Java 8, the average() method of the DoubleStream interface calculate the average of the list of integers. 1. Stream […] Continue reading »

Different ways to iterate/loop a List of Integers in Java

In Java, you can iterate or loop a List object in different ways. In this short example, you will find […] Continue reading »

Java- Find the element in the List having maximum value

In Java 8, Stream API’s max method returns the maximum element of this stream according to the provided Comparator and […] Continue reading »

Java- Find all Capital Letters in the String

In this short tutorial, we’ll find all the capital letters in the given String using Java. Character.isUpperCase(char ch) returns true […] Continue reading »

How to generate QR Code in Java

QRGen library provides an API to generate the QR Code in a Java application. It is built on the top […] Continue reading »

How to display all UTC offset in Java 8

In Java 8, we can use ZoneId.getAvailableZoneIds() to get all unique zone id and LocalDateTime to get UTC offset of […] Continue reading »

Java 8 – Difference between two LocalDate

In Java 8, we can use Period.between(startDate, endDate) method to find out the difference between two LocalDate instances. Period is […] Continue reading »

Display all ZoneId in Java 8

In Java 8, ZoneId.getAvailableZoneIds() method return all available unique ZoneId and we can loop it for display. static Set<String> getAvailableZoneIds(); […] Continue reading »

Java 8– Calculate date & time difference between two Zone

In Java 8, we can use LocalDateTime.now(ZoneId.of(String zoneId)) to get current LocalDateTime instance of the zoneId  and Duration to calculate […] Continue reading »

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