Type for measurements

Question

For Science and Engineering a number is usually naked without its measurement unit.
Can I somehow make a type for values like 59.333mn or 657.99ft?
I could use "59.333mn" and "657.99ft" but that seems cumbersome.
Does java have such a type or another good way?
C has struct. class seems a bit much too. There would be so many classes around.

Answer 1

Thank you EJP for the information and encouragement.
I got a start tonight by writing the attached class.
I think I will use it and modify some appropriate conversion routines I have elsewhere and add.
I have used some subroutines not included here.
  public static class M1 {
    double value=Double.NaN; String unit=""; int nNegSigns=0; int nPoints=0; int digCnt=0; int untWid=-1; int totWid=-1;
    M1(String measInStg) { //constructor using string
      int lgt=measInStg.length();
      for(int i=0;i<lgt;i++) {
        if(isDigit(measInStg.charAt(i))) { digCnt++; continue; } else if(measInStg.charAt(i)=='-') { nNegSigns++; continue; } else
        if(measInStg.charAt(i)=='.') { nPoints++; continue; } else if(measInStg.charAt(i)=='+')continue; else
        if(isAlphaChar(measInStg.charAt(i))) {
          unit=measInStg.substring(i); value=Double.parseDouble(measInStg.substring(0,i)); untWid=lgt-i;
          if(nPoints>1) { System.out.println("Found more than one decimal point in measurement "+measInStg); System.exit(0); }
          if(nNegSigns>1) { System.out.println("Found more than one negative sign in measurement "+measInStg); System.exit(0); }
          totWid=nNegSigns+nPoints+digCnt+untWid; break; //pause("totWid="+totWid+" nNegSigns="+nNegSigns+" nPoints="+nPoints+" digCnt="+digCnt+" untWid="+untWid); break;
        } System.out.println("Unknown character "+measInStg.charAt(i)+" in measurement "+measInStg+" at position "+i); System.exit(0); //leave remainder concerns for elsewhere 
    M1(double val,String unt) { //constructor using number and unit
      value=val; unit=unt; untWid=unt.length();
    String measOuStg(int outWid) {
      String ouStg=OuWid.sR(value,outWid-untWid)+unit; return(ouStg);
    M1 tim0=new M1(59.99,"sc"); System.out.println(tim0.measOuStg(8)); System.exit(0);
    M1 tim1=new M1("59.99sc"); System.out.println(tim1.measOuStg(6)); System.exit(0);