Month: September 2019

Java Console

Using scanner read user password from terminal isn’t practical due to sensitive data. Alternatively we can use Console class. Note! […]

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Java – Scanner

InputStream in read user input from terminal bytes by bytes. We can use the Scanner class to read the whole […]

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Java – String

This post will cover the following topics in this article Concatenation Performance comparison String Join Substring String Immutable String Pool […]

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Equality Operators

Primitive type compare using == , while object compare using equals method. When compare object with ==, we’re compare the […]

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Java – Incremental Operators

This topic will discuss about incremental operation in Java. ++addFirst yield value increment before it used while addLater++ yield value […]

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Primitive Wrapper Types

This topic will talk about what is wrapper types, boxing, unboxing and autoboxing. A wrapper type is a class that […]

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Java – Primitive Type

The simplest types in java are call primitive type. Java has 8 built-in primitive types, and each of these has […]

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