public Integer build() {
        return Integer.valueOf(toComparison());
    }
Returns a negative Integer, a positive Integer, or zero as
the <code>builder</code> has judged the "left-hand" side
as less than, greater than, or equal to the "right-hand"
side.

@return final comparison result as an Integer
@see #toComparison()
@since 3.0
android/android_framework/base/src/main/java/lang3/builder/CompareToBuilder.java