/*	Punters Lounge JAVA programming course
 *	
 *	Lesson55.java
 *
 *	Author	:	Erik Datapunter
 *	Date	:	28/apr/2004
 *
 *	Passing arguments to a program.
 *
 *	Warning : program requires 4 parameters , all being of the Integer type
 *
 *	eg.		C:\JAVA>JAVA Lesson55 1000 100 3 1
 *
 */

public class Lesson55 {
public static void main(String[ ] arguments) {

	
	// Array to contain the arguments passed in
	int[] ProgramData = new int[4];
	
	// variable names used to access the info in the Array
	int Bank	= 0;
	int Bet		= 1;
	int Odds	= 2;
	int WinLose	= 3;

	// convert the String information of the arguments into integer and store in our array
	ProgramData[Bank]    = Integer.parseInt(arguments[ Bank ]);
	ProgramData[Bet]     = Integer.parseInt(arguments[ Bet ]);
	ProgramData[Odds]    = Integer.parseInt(arguments[ Odds ]);
	ProgramData[WinLose] = Integer.parseInt(arguments[ WinLose ]);
	
	// calculate new bank
	if (ProgramData[WinLose] == 0)
	{
		ProgramData[Bank] = ProgramData[Bank] - ProgramData[Bet];
	}
	else
	{
		ProgramData[Bank] = (ProgramData[Bank] - ProgramData[Bet]) + (ProgramData[Bet] * ProgramData[Odds]);
	}

	System.out.println(ProgramData[Bank]);
	
}
}