Java-pomoč

Bi znal kdo te spodnje vrstice pretvoriti iz C++ v Javo?

class Evaulator
{
private:
Scanner* scanner;

protected:
bool E(double& vred)
{
double tempVred;
bool ok= T(tempVred);
return ok && EE(tempVred,vred);
}
bool EE(double inVred, double& vred)
{
if(scanner->currentToken().getLexem()=="+" || scanner->currentToken().getLexem()=="-")
{
if(scanner->currentToken().getLexem()=="+")
{
scanner->nextToken();
double tempVred;
bool ok=T(tempVred);
return ok && EE(inVred + tempVred, vred);
}
else
{
scanner->nextToken();
double tempVred;
bool ok=T(tempVred);
return ok && EE(inVred - tempVred, vred);
}

}
vred=inVred;
return true;
}
bool T(double& vred)
{
double tempVred;
bool ok = F(tempVred);
return ok && TT(tempVred,vred);
}
bool TT(double inVred, double& vred)
{
if(scanner->currentToken().getLexem()=="*" || scanner->currentToken().getLexem()=="/")
{
if(scanner->currentToken().getLexem()=="*")
{
scanner->nextToken();
double tempVred;
bool ok = F(tempVred);
return ok && TT(inVred * tempVred, vred);
}
else
{
scanner->nextToken();
double tempVred;
bool ok = F(tempVred);
return ok && TT(inVred / tempVred, vred);
}
}
vred=inVred;
return true;
}
bool F(double& vred)
{
if(scanner->currentToken().getTip()==1)
{
vred=(double)atoi(scanner->currentToken().getLexem().c_str());
scanner->nextToken();
return true;
}
else
{
if(scanner->currentToken().getLexem()=="(")
{
scanner->nextToken();
bool zac=E(vred);
if(zac && scanner->currentToken().getLexem()==")")
{
scanner->nextToken();
return true;
}
else
{return false;}
}
else
{return false;}
}

}
public:
Evaulator(Scanner* aScanner)
{
scanner=aScanner;
scanner->nextToken();
}
bool Parse(double& vred)
{
return E(vred) && scanner->sc_end();
}
};
#endif

HVALA ZA POMOČ!

Ovira me to, da Java ne podpira prenosa po referrenci!Pa nasploh neznanje jezika Java.

tisto česar java nima so pointerji