How to install FB into multiple instances of Eclipse

Question

I have multiple instances of eclipse (various versions and
combinations of plugins) and want to know how to install FB into
one than one instance of Eclipse?

Answer 1

You need to pass a reference of the StatisiticalStore instance to the ExcelReader class. See the updated code below.
public class StatisticalStore
     static int evaluatedDataLength = 3;
     private double forecasts[];
     static int x=0;
     public StatisticalStore()
          initialiseStore();
     public void initialiseStore()
          forecasts = new double [evaluatedDataLength];
     public void updateStore(double singlePrediction)
          forecasts[x] = singlePrediction;
          x++;
     public static void main (String args[])
          StatisticalStore store = new StatisticalStore();
          ExcelReader excelSheet = new ExcelReader(store);
          ExcelReader excelSheet1 = new ExcelReader(store);
          ExcelReader excelSheet2 = new ExcelReader(store);
          for ( int i=0; i<evaluatedDataLength; i++)
               System.out.println(store.forecasts);
class ExcelReader
     double aNumber;
     StatisticalStore store;
     public ExcelReader(StatisticalStore aStore)
          store = aStore;
          generateRandom();
          updateStatisticalStore();
     public void generateRandom()
          aNumber = Math.random();
     public void updateStatisticalStore()
          store.updateStore((aNumber*store.evaluatedDataLength)-1);