This post shows how to use Java Stream Reduce with example codes. The idea of the reduce operation is the generation of a single result from a collection of values or objects. It is similar to the min and max operations
iReport 2.0.0 Page Numbers and Page Count
This post shows how to create a jasper report using iReport that displays page numbers and page count, e.g., 1/10. Moreover, the iReport will show the page numbers and page count on top of the pages. iReport 2.0.0 and other
Java 8 – Get my current timezone using ZonedDateTime
This post shows how to get your current timezone in Java using ZonedDateTime class. Get Current Timezone Using ZonedDateTime Since Java 8, it is possible to determine your current timezone using ZoneDateTime. Suppose you are in Singapore or thereabout; the
Java – Generate PDF in Specific Version using JasperReports
Some devices can only process specific versions of PDFs. This post shows how to generate specific PDF versions in Java and JasperReports. If our devices are considerably old, chances are they can only process older versions of PDF documents. Java,
How to update User Country and Language in SAP NetWeaver Portal
We can create SAP NetWeaver Portal users from various sources. One is through LDAP. Unfortunately, the details from LDAP are never comprehensive. Next, is through user inputs. Users register and provide details like country and language. This post shows how
Java – Rename a file Using a File Object Example
To rename a file , use the renameTo method in java.io.File.
Java – Convert JavaBean Using XMLEncoder and XMLDecoder
This post shows how to use the Java classes XMLEncoder and XMLDecoder to convert JavaBean objects to XML and back. Note that they support the specifications for JavaBeans to make things work. On the other hand, a conversion may not
Java 8 – Convert Iterator to Stream Using StreamSupport
Although not a common scenario, some libraries return Iterators instead of Stream or Collection objects. Why? Because they can. If the Java libraries you are using have methods that return Iterator objects, this will show how to convert Iterator to
Avoid NullPointerException with Stream.ofNullable in Java 9
This post demonstrates how to avoid NullPointerException in Java 9 when working with Stream and using the overloaded of metho
Java – Create class constructor with fields faster in Eclipse
This post shows how to create a Java class constructor with fields faster in Eclipse. Before the advent of smart IDEs, Java developers write out almost all codes as it was the only way to do and IDEs were in