GoalObj - Archimedian and pre-emptive goal programming using objective functions

/********************************************************
  Xpress-BCL Java Example Problems
  ================================

  file xbgoalobj.java
  ```````````````````
  Archimedian and pre-emptive goal programming
  using objective functions.

  (c) 2008 Fair Isaac Corporation
      author: S.Heipcke, 2005, rev. Mar. 2011
********************************************************/

import java.lang.*;
import com.dashoptimization.*;

public class xbgoalobj
{
 static final int NGOALS = 3;

/**** Data ****/
 static final String[] Type = {"perc", "abs", "perc"};
 static final String[] Sense = {"max", "min", "max"};
 static final double[] Weight = {100, 1, 0.1};
 static final double[] Deviation = {10, 4, 20};

 public static void main(String[] args) throws XPRSprobException, XPRSexception
 {
  XPRB bcl;
  XPRBvar x,y;
  XPRBexpr[] goal;
  XPRBexpr wobj;
  XPRBctr[] goalCtr;
  XPRBctr aCtr;
  double[] Target;
  XPRBprob prob;
  int i,g;

  bcl = new XPRB();              /* Initialize BCL */
  prob = bcl.newProb("Goal");    /* Create a new problem */
  XPRS.init();                   /* Initialize Xpress-Optimizer */

  Target = new double[NGOALS];
  goalCtr = new XPRBctr[NGOALS];
  goal = new XPRBexpr[NGOALS];
  wobj = new XPRBexpr();

 /* Adding the variables */
  x = prob.newVar("x",XPRB.PL);
  y = prob.newVar("y",XPRB.PL);

 /* Adding a constraint */
  aCtr = prob.newCtr("Limit", x.mul(42) .add(y.mul(13)) .lEql(100) );

 /* Goals */
  goal[0] = x.mul(5) .add(y.mul(2)) .add(-20);
  goal[1] = x.mul(-3) .add(y.mul(15)) .add(-48);
  goal[2] = x.mul(1.5) .add(y.mul(21)) .add(-3.8);
  for(g=0;g=  ":" <=  ") + Target[g]);
   if(g==NGOALS-1) 
    System.out.println("   " + prob.getObjVal());
   else   
    System.out.println("   " + (goalCtr[g].getAct() - goalCtr[g].getRHS() 
                       + Target[g]));
  }

 }

}