toLowerCase() Java - How to convert lowercase to uppercase

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toLowerCase() in Java

The method called toLowerCase() converts all letters into lowercase. For example, the String "LIFE IS GREAT" will be converted into "life is great".

Syntax:

How To Call the Method:

Example:

If you run this code on your computer, you will see the following in the console:

Commentary:

We have applied the method called toLowerCase to 3 Strings:

  • "I love JAVA"
  • "TEXT 1 2 3"
  • "vertex"

As a result:

  • "I love JAVA" was converted into "i love java"
  • "TEXT 1 2 3" was converted into "text 1 2 3 "
  • "vertex" was returned as "vertex", because initially it was already lowercase.

* The method toLowerCase() has another realization - with the parameter Localе. Later on we will write a separate article on this.

That's if for this article. You can find more articles in our Java Tutorial for Beginners.

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