The **`toUpperCase()` function**  converts a string to uppercase. 

The following figure shows a visual representation of the `toUpperCase()` function.

# Syntax
```java
String toUpperCase()

// Usage
string_1.toUppercase()
```
# Parameter
The `toUpperCase()` function does not require a parameter.

# Return value
The `toUpperCase()` function returns a string that is converted to uppercase.  

# Code





class JAVA {
    public static void main( String args[] ) {
        String string="educative";
        String string_1="Educative09";
        //to uppercase string
        System.out.println("string.toUpperCase():");
        System.out.println(string.toUpperCase());

        //to uppercase string and number
        System.out.println("string_1.toUpperCase():");
        System.out.println(string_1.toUpperCase());

    }
}

What is String.toUpperCase() in Java?

Converts a string to uppercase, does not need a parameter, and returns the converted string.