The compare method is a static method of the Float class that is used to compare two float values.
public static int compare(float x, float y);
The function takes in two float values as a parameter.
This method returns:
0 if both the values are the same.
A value less than zero if x is less than y.
A value greater than zero if the x is greater than y.
Case | Return Value |
x == y | 0 |
x < y | < 0 |
x > y | > 0 |
The example below uses the Float.compare method:
class FloatCompare {public static void main( String args[] ) {float ten = 10f;float twenty = 20f;System.out.println("ten, ten : " + Float.compare(ten, ten));System.out.println("twenty, twenty : " + Float.compare(twenty, twenty));System.out.println("ten, twenty : " + Float.compare(ten, twenty));System.out.println("twenty, ten : " + Float.compare(twenty, ten));}}
In the code above:
float variables:ten = 10f;
twenty = 20f;
compare method of the Float class to compare the float values.compare(ten,ten);
compare(twenty, twenty);
The compare method returns 0, as both the compared values are the same.
Then, we compared ten with twenty:
compare(ten, twenty);
The compare method returns a value < 0 because the first value is less than the second value.
Then, we compared twenty with ten.
compare(twenty, ten);
compare method returns a value > 0 because the first value is greater than the second value.