toLowerCase() and toUpperCase() - String Methods in Java

This article is a part of String Methods in Java.
The toUpperCase() and toLowerCase() method converts all the characters of the string into upper and lower cases respectively.

Return type

The return type for toUpperCase() and toLowerCase() is String. Let us look at an example for this method.

public class string_methods { public static void main(String[] args) { String str = "LearningJournal"; System.out.println(str.toLowerCase()); System.out.println(str.toUpperCase()); } }

Output

Let us look at the output of the above.

String Methods toLowerCase() and toUpperCase() — Fig.1- String Method - toLowerCase() and toUpperCase()

toLowerCase() and toUpperCase() - String Methods in Java

Return type

Output

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Author : Satyam Kumar -

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