Compare floating-point for almost equal in Java

Description

The following code shows how to compare floating-point for almost equal.

Example


/*  w w w  .  j a va 2  s.c  o m*/
public class Main{
  public static boolean equals(double v1, // First argument
      double v2, // Second argument
      double e) // Epsilon
  {
    return Math.abs(v1 - v2) < e;
  }

  public static void main(String[] args) {

    double a = 9.33333333333000;
    double b = 9.33333333333333;
    final double EPSILON = 1.0E-10;

    if (equals(a, b, EPSILON))
      System.out.println("values are equal");
    else
      System.out.println("values are not equal");
  }
}

The code above generates the following result.





















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