Write a Java program to convert all the characters in a string to uppercase.

Java Programming Language String in java (Article) String in java (Program)

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Program:

public class Exercise {

   public static void main(String[] args)
    {
        String str = "The Quick BroWn FoX!";

        // Convert the above string to all uppercase.
        String upper_str = str.toUpperCase();

        // Display the two strings for comparison.
        System.out.println("Original String: " + str);
        System.out.println("String in uppercase: " + upper_str);
    }
}

Output:

Original String: The Quick BroWn FoX!
String in uppercase: THE QUICK BROWN FOX!
Press any key to continue . . .

Explanation:

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