Java Float compareTo() method with Examples

by Online Tutorials Library July 22, 2022

Java Float int compareTo() Method

The compareTo() method of Java Float class compares two Float objects numerically. The sign of the integer value returned is same as that would be returned by the compare(float f1, float f2) method.

Syntax:

Parameters:

anotherFloat is the float parameter passed, which is to be compared.

Return Value:

This method returns the integer value of the argument.

Returns a zero if the invoked Float object is same as value of anotherFloat.
Return a positive value if the invoked Float object is greater than anotherFloat.
Return a negative value if the invoked Float object is less than anotherFloat.

Example 1

  import java.lang.Float;      public class  FloatcompareToMethodExample1 {        public static void main(String[] args) {              Float floatValue1 = new Float(“10”);          Float f  qloatValue2 = new Float(“50.44″);              //compares two Float objects numerically          int compare=floatValue1.compareTo(floatValue2);           if(compare > 0){               int sub = (int) (floatValue1 –  floatValue2);               System.out.println(floatValue1+” is greater. nAnswer after subtraction is= “+sub);           }             else if(compare<0){               int sub = (int) (floatValue2 –  floatValue1);               System.out.println(floatValue2+” is greater. nAnswer after subtraction is= “+sub);           }             else{               int sub = (int) (floatValue1 –  floatValue2);               System.out.println(” Both are equal! nAnswer after subtraction is= “+sub);           }          }      }  

Test it Now

Output:

50.44 is greater.  Answer after subtraction is 40.44.

Example 2

  import java.lang.Float;  import java.util.Scanner;      public class  FloatcompareToMethodExample2 {        public static void main(String[] args) {              Float f1 = new Float(“18”);          Scanner scanner= new Scanner(System.in);            System.out.println(“Enter your age”);          Float f2=scanner.nextFloat();            //compares two Float objects numerically          int compare=f1.compareTo(f2);          if(compare > 0){              System.out.println(” You are not eligible for voting.”);          }            else if(compare<0){              System.out.println(“You are eligible for voting. “);          }          else{                System.out.println(“Congrats you are an adult now.From now you can vote.”);          }      }  }  

Test it Now

Output:

Enter your age  18  Congrats you are an adult now.From now you can vote.

Example 3

  import java.lang.Float;        public class  FloatcompareToMethodExample3 {        public static void main(String[] args) {              Float f1 = new Float(“34”);            System.out.println(“Enter your age”);                      int compare=f1.compareTo();          if(compare > 0){              System.out.println(” You have “+f1+” amount “);          }            else if(compare<0){              System.out.println(“Sorry! Your account is too low .Deposit some money”);          }          else{                System.out.println(“Congrats you are an adult now.From now you can vote.”);          }      }  }  

Test it Now

Output:

Error:(17, 23) java: method compareTo in class java.lang.Float cannot be applied to given types;    required: java.lang.Float    found: no arguments    reason: actual and formal argument lists differ in length

It is compulsory to pass an arguments in Float class compareTo() method, otherwise it will give you an error.

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Java Float compareTo() method with Examples

Java Float int compareTo() Method

Syntax:

Parameters:

Return Value:

Example 1

Example 2

Example 3

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