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Java Float class toString() method with example

Float class toString() method: Here, we are going to learn about the toString() method of Float class with its syntax and example.
Submitted by Preeti Jain, on October 08, 2019


    public String toString();
    public static String toString(float value);

Float class toString() method

  • toString() method is available in java.lang package.
  • toString() method is used to represent String denoted by this Float object.
  • toString(float value) method is used to represent String denoted by the given argument of float type.
  • These methods do not throw an exception at the time of conversion from Float to String.
  • They are non-static methods, they are accessible with the class object only and if we try to access the method with the class name then we will get an error.


  • In the first case toString(), we don't pass any parameter or value.
  • In the second case toString(float value), we pass only one parameter of the float type it represents the float value to be converted.

Return value:

In the first case, the return type of this method is String - it returns the String representation of this Float object.

In the second case, the return type of this method is String - it returns the String representation of the given argument is of float type.


// Java program to demonstrate the example 
// of toString () method of Float class

public class ToStringOfFloatClass {
    public static void main(String[] args) {
        // Object initialization
        Float ob1 = new Float("10.20f");
        Float ob2 = new Float("20.20f");

        // Display ob1,ob2 values
        System.out.println("ob1: " + ob1);
        System.out.println("ob2: " + ob2);

        // It represents string of this Float object
        String value1 = ob1.toString();

        // It represents string of the given float parameter
        String value2 = Float.toString(ob2);

        // Display result values
        System.out.println("ob1.toString(): " + value1);
        System.out.println("Float.toString(ob2): " + value2);


ob1: 10.2
ob2: 20.2
ob1.toString(): 10.2
Float.toString(ob2): 20.2

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