Convert a Double to String: M3

Since M3 Java code is similar to RPG and use MvxString rather than String, here is the code to convert/format numeric value to alpha value in M3.

1:  this.PXNUM = dSUM;
2:  this.PXALPH.clear();
3:  SRCOMNUM.COMNUM();
4:  WQT[tempIdx].moveRight(this.PXALPH);

In line number:

1. Assign double value which is to be converted.
2. Clear any previous value of PXALPH.
3. Actual conversion. The SRCCOMNUM is an object of cSRCOMNUM class declared in mvx.app.util.
4. Gets the converted alphanumeric value.

Let, dSUM= 38.05580 and if we want:

• to display dSUM with two decimals:
Java

1:  this.PXNUM = dSUM; 
2:  this.PXALPH.clear();   
3:  this.PXDCCD = 2; // setting number of decimals.
4:  SRCOMNUM.COMNUM(); 
5:  WQT[tempIdx].moveRight(this.PXALPH);

Output> 38.05

• to display a negative value: Here we have an option for which character to be used for negative representations (i.e. –38.05, (38.55), 38.05- etc.)
Java

1:  this.PXNUM = dSUM; 
2:  this.PXALPH.clear();   
3:  this.PXDCCD = 2; 
4:  SRCOMNUM.PXPNVB='('; // Left character if negative
5:  SRCOMNUM.PXPNVA=')'; // Right character if negative
6:  SRCOMNUM.COMNUM(); 
7:  WQT[tempIdx].moveRight(this.PXALPH);

Output> (38.05)