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Java

Memahami Java Stream: olah koleksi dengan lebih ringkas

Pelajari alur filter, map, dan collect untuk mengolah data Java dengan kode yang mudah dibaca.

D Tim Diary Coding · 1 menit baca
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GRADLE / CATATAN</>
Gradle21 Des 2015

How do I install Gradle in Mac OS X?

In this post we will learn how to install Gradle in OS X. The following steps will guide our installation process to make Gradle available in our OS X machine. But before we start let’s take a look at the definition from wikipedia about Gradle. Gradle is an open source build automation system that builds […]

Wayan · 3 menit baca
CORE API / CATATAN</>
Core API20 Des 2015

How do I implement equals() and hashCode() method using java.util.Objects?

This example will show you how to implement the equals() and hashCode() object using java.util.Objects class. The Objects class provides a set of utility methods to work with object such as comparing two objects for equality and calculating the hashcode. Other methods include object null check methods, object to string method, etc. To demonstrate equals() […]

Wayan · 3 menit baca
XML / CATATAN</>
XML18 Des 2015

How do I validate XML against XSD in Java?

The javax.xml.validation package provides an API for XML documents validation. The validation process verify that an XML document is an instance of a specified XML schema file or XSD file. In this example we are going to validate if the records.xml file below ins an instance of the records.xsd schema. First we will create the […]

Wayan · 4 menit baca
JAVA 8 / CATATAN</>
Java 815 Nov 2015

How do I use the java.time.DayOfWeek enum?

The java.time.DayOfWeek enums in Java 8 Date-Time API describes the days of the week. The enum has constants value from DayOfWeek.MONDAY through DayOfWeek.SUNDAY. These enums also have their integer values where 1 is equal to MONDAY and 7 is equal to SUNDAY. In the code snippet below you can see a couple usage of the […]

Wayan · 4 menit baca
JAVA 8 / CATATAN</>
Java 815 Nov 2015

How do I format date-time objects in Java 8?

In your Java application you want to format date-time objects using the new date and time API introduced in JDK 8. A solution to this problem is to use the java.time.format.DateTimeFormatter. The DateTimeFormatter class provides formatter for printing and parsing date-time objects. With this class we can format the date-time objects using a predefined constants, […]

Wayan · 2 menit baca
CORE API / CATATAN</>
Core API19 Jul 2015

How can I insert an element in array at a given position?

As we know an array in Java is a fixed-size object, once it created its size cannot be changed. So if you want to have a resizable array-like object where you can insert an element at a given position you can use a java.util.List object type instead. This example will show you how you can […]

Wayan · 2 menit baca

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