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Convert HashMap.toString() to HashMap in Java

A quick and practical guide to converting HashMap.toString() to HashMap in Java.

How to Split an Integer Number Into Digits in Java

Explore various approaches to splitting an integer number into its constituent digits using Java.

Converting String or String Array to Map in Java

A quick and practical guide to converting String or String Array to Map in Java.

How to Take Input as String With Spaces in Java Using Scanner?

Learn how to read values containing spaces from a Scanner through examples.

Find the Longest Word in a Given String in Java

Learn how to find the longest words in a sentence.

How to Persist a List of String in JPA?

Explore what kind of possibilities there are in JPA to store a list of strings of an entity.

Find the First Embedded Occurrence of an Integer in a Java String

Learn different techniques to extract the first embedded integer from a String.

Convert String to String Array

Explore how to convert a String into a String array (String[])

Capitalize the First Letter of a String in Java

Learn how to convert a given string’s first character to upper case.

How to Truncate a String in Java

Learn how to truncate a String in Java.

How to Split a Stream into Multiple Streams

Sometimes we need to process the elements of a stream in multiple ways. We explore a few options for splitting the stream, or running the stream over several terminal operations.

Get the Last Word of a String

A quick and practical overview of getting the last word of a String in Java.

Count Spaces in a Java String

Learn various ways to count how many spaces are in a string through examples

Convert a String to Camel Case

Camel case text conversion can be achieved by using regular expressions, or via some library functions. We look at a couple of implementations we can add to our own code, and a couple of examples from libraries.