Scala String compareTo() method with example

The compareTo() method is utilized to compare a string with another string.
Some points to remember:

• Here, If a string(S1) is same as string(S2) in comparison then this method returns zero.
• If S1 is less than S2 then a negative number is returned which is the difference of character value.
• If S1 is greater than S2 then a positive number is returned.

Method Definition: int compareTo(String another String)
Return Type: It returns an integer.

Example #1:

// Scala program of compareTo()
// method

// Creating object
object GfG
{

    // Main method
    def main(args:Array[String])
    {
        // Creating a String
        val m1 = "Nidhi"

        // Applying compareTo() method
        val result = m1.compareTo("Nidhi")

        // Displays output
        println(result)

    }
}

Output:

0

It returns zero as both the strings are same.
Example #2:

// Scala program of compareTo()
// method

// Creating object
object GfG
{

    // Main method
    def main(args:Array[String])
    {
        // Creating a String
        val m1 = "Nidhi"

        // Applying compareTo() method
        val result = m1.compareTo("Nidh")

        // Displays output
        println(result)

    }
}

Output:

1

It returns a positive number as S1 is greater than S2 here.
Example #3:

// Scala program of compareTo()
// method

// Creating object
object GfG
{

    // Main method
    def main(args:Array[String])
    {
        // Creating a String
        val m1 = "Nidhi"

        // Applying compareTo() method
        val result = m1.compareTo("nidh")

        // Displays output
        println(result)

    }
}

Output:

-32

It returns a negative number as S1 is less than S2 here.