Posted on June 16, 2009 - by admin

Problem Accessing Hashtables From Another Class?

Hi everyone,
Very new to Java, I’m trying to access a set of Hashtables (in the Timeseries class) from my main method (in the Engine class).
but keep getting all kinds of error messages stating that:
myTimeseries cannot be resolved
and
Type mismatch: cannot convert from Timeseries to Hashtable
I dont know how to do it, could some one offer me a hand please.
I have not set any data get as I thought it a good idea to get this to work first
Many thanks
[code]
package StatPairsModel;
import java.util.Hashtable;
public class Engine {
public static void main(String[] arguments) {
Instrument stock1 = new Instrument();
Instrument stock2 = new Instrument();
int numberOfPairs = 3;
stock1.setStock("0015425", "Vodafone", "VOD LN", "UK", "TELECOM",
"GBP", "VOD LN", "FTSE");
stock2.setStock("0045125", "Telecom Italia", "TIM IM", "IT", "TELECOM",
"EUR", "TIM IM", "MIB");
int i=0;
for ( i = 0; i < myTimeseries.length; i++) {
//**Problem is on the next two lines of code**
Hashtable myTimeseries = new Timeseries();
myTimeseries.setTimeseries(mnemonic... myIdMapln, myDateMapln, myClose_price_euroMapln,
myClose_volumeMapln, myClose_market_capMapln, myCorp_action_indMapln,
myBetaMapln, myClose_price_localMapln);
}
}
}
package StatPairsModel;
import java.util.Hashtable;
public class Timeseries{
Hashtable mnemonicMap = new Hashtable();
Hashtable idMap = new Hashtable();
Hashtable dateMap = new Hashtable();
Hashtable close_price_euroMap = new Hashtable();
Hashtable close_volumeMap = new Hashtable();
Hashtable close_mcapMap = new Hashtable();
Hashtable close_corp_actionMap = new Hashtable();
Hashtable betaMap = new Hashtable();
Hashtable close_price_localMap = new Hashtable();
public void setTimeseries(Hashtable mnemonicMapln,Hashtable idMapln,Hashtable dateMapln,Hashtable close_price_euroMapln,
Hashtable close_volumeMapln,Hashtable close_mcapMapln,Hashtable close_corp_actionMapln,
Hashtable betaMapln,Hashtable close_price_localMapln) {
mnemonicMap = mnemonicMapln;
idMap = idMapln;
dateMap = dateMapln;
close_price_euroMap = close_price_euroMapln;
close_volumeMap = close_volumeMapln;
close_mcapMap = close_mcapMapln;
close_corp_actionMap = close_corp_actionMapln;
betaMap = betaMapln;
close_price_localMap = close_price_localMapln;
}
public void setMnemonic(Hashtable mnemonicMapln) {
mnemonicMap = mnemonicMapln;
}
public Hashtable getMnemonic(Hashtable mnemonicMap) {
return mnemonicMap;
}
public void setIdMap(Hashtable idMapln) {
idMap = idMapln;
}
public Hashtable getId(Hashtable idMap) {
return idMap;
}
public void setDate(Hashtable dateMapln) {
dateMap = dateMapln;
}
public Hashtable getDate(Hashtable dateMap) {
return dateMap;
}
public void setClose_price_euro(Hashtable close_price_euroMapln) {
close_price_euroMap = close_price_euroMapln;
}
public Hashtable getclose_price_euro(Hashtable close_price_euroln) {
return close_price_euroMap;
}
public void setClose_volume(Hashtable close_volumeMapln) {
close_volumeMap = close_volumeMapln;
}
public Hashtable getclose_volume(Hashtable close_volumeMapln) {
return close_volumeMap;
}
public void setClose_market_cap(Hashtable close_mcapMapln) {
close_mcapMap = close_mcapMapln;
}
public Hashtable getclose_market_cap(Hashtable close_market_capln) {
return close_mcapMap;
}
public void setCorp_action_ind(Hashtable close_corp_actionMapln) {
close_corp_actionMap = close_corp_actionMapln;
}
public Hashtable getcorp_action_ind(Hashtable corp_action_indln) {
return close_corp_actionMap;
}
public void setbeta(Hashtable betaMapln) {
betaMap = betaMapln;
}
public Hashtable getbeta(Hashtable betaln) {
return betaMap;
}
public void setclose_price_local(Hashtable close_price_localMapln) {
close_price_localMap = close_price_localMapln;
}
public Hashtable getclose_price_local(Hashtable close_price_localMapln) {
return close_price_localMap;
}
void display(int i) {
System.out.print(Timeseries.this.mne... + "\t");
System.out.print(Timeseries.this.idM... + "\t");
System.out.print(Timeseries.this.dat... + "\t");
System.out.print(Timeseries.this.clo... + "\t");
System.out.print(Timeseries.this.clo... + "\t");
System.out.print(Timeseries.this.clo... + "\t");
System.out.print(Timeseries.this.clo... + "\t");
System.out.print(Timeseries.this.bet... + "\t");
System.out.print(Timeseries.this.clo... + "\t");
System.out.println();
}
}