2014-02-05 71 views
2

是否有轉換酒吧PSI(磅每平方英寸)?像轉換毫米到英寸JScience Java的單位欄以PSI

//mm to inches 
    Unit<Length> mm = SI.MILLIMETER; 
    Unit<Length> in = NonSI.INCH; 
    UnitConverter toInch = mm.getConverterTo(in); 

    double d1 = toInch.convert(Measure.valueOf(10.0,mm).doubleValue(mm)); 
    Measure<Double, ? extends Quantity> convert1 = Measure.valueOf(d1, in); 
    System.out.println(convert1); 

我可以乘以轉換任何直接的方式(1 bar = 14.5037738磅/平方英寸的值)手動,但是有沒有其他方法來實現下面的代碼行?

//bar to psi 
    Unit<Pressure> bar = NonSI.BAR; 
    Unit<? extends Quantity> psi = NonSI.POUND.divide(NonSI.INCH.pow(2)); 
    UnitConverter toPsi = bar.getConverterTo(psi);// not compitable error 

    double d2 = toPsi.convert(Measure.valueOf(10.0,bar).doubleValue(bar)); 
    Measure<Double, ? extends Quantity> convert2 = Measure.valueOf(d2, psi); 
      System.out.println(convert2); 

回答

0

您應該使用POUND_FORCE而不是POUND

POUND_FORCE.divide(INCH.pow(2)).getConverterTo(BAR)