Java - convert string to uppercase

In this article, we would like to show you how to convert string to uppercase in Java.

Quick solution:

String text = "abcd";

String textUpper = text.toUpperCase();

System.out.println(textUpper);  // ABCD

Practical example

In this example, we use String.toUpperCase() method to convert the text string to uppercase.

public class Example {

    public static void main(String[] args) {
        String text = "abcd";

        // convert text to uppercase
        String textUpper = text.toUpperCase();

        System.out.println(textUpper);  // ABCD
    }
}

Output:

ABCD