src/main/java/com/rockagen/commons/util/Arith.java
public static float addF(final float v1, final float v2){
        BigDecimal b1 = new BigDecimal(Float.toString(v1));
        BigDecimal b2 = new BigDecimal(Float.toString(v2));
        return b1.add(b2).floatValue();
    }
public static float addF(final float v1, final float v2){
        BigDecimal b1 = new BigDecimal(Float.toString(v1));
        BigDecimal b2 = new BigDecimal(Float.toString(v2));
        return b1.add(b2).floatValue();
    }
add
@param v1 left value
@param v2 right value
@return v1+v2