FloatingPointUtil.java

package org.mapfish.print;

/**
 * Util class to test equality of floating points.
 */
public final class FloatingPointUtil {
    private static final float EPSILON =  0.00000001F;

    private FloatingPointUtil() {
    }

    /**
     * Check the equality of two floats taking into consideration the precision issue of floating point arithmetic in Java.
     *
     * @param f1 Float 1.
     * @param f2 Float 2.
     * @return
     */
    public static boolean equals(final float f1, final float f2) {
        return Math.abs(f1 - f2) <= EPSILON;
    }

    /**
     * Check the equality of two doubles taking into consideration the precision issue of floating point arithmetic in Java.
     *
     * @param d1 Double 1.
     * @param d2 Double 2.
     * @return
     */
    public static boolean equals(final double d1, final double d2) {
        return Math.abs(d1 - d2) <= EPSILON;
    }
}