Java Programming Tutorials

Java programming tutorials with many code examples!

Java Singleton – enum implementation

Java Singleton – enum implementation

Singleton as enum is very simple to implement and very safe at the same time thanks to language guarantees for enum instantiation and serialization.

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Java Reverse String in 2 ways

Java Reverse String in 2 ways

Java String doesn’t have reverse method, so it may not be immediately apparent how to reverse a string in Java. Here are two ways do do it.

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Insertion Sort in Java

Insertion Sort in Java

Insertion Sort is another simple to understand and implement algorithm. Unlike Selection Sort it can work faster with certain data.

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Selection Sort in Java

Selection Sort in Java

Selection Sort is one of many sorting algorithms, but unlike a few others it is easy to understand and implement as we’re going to show here!

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