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Files » VendingMachine.java

Alexey Demakov, 11/24/2014 05:44 PM

 
package ru.ispras.kmb.vending;

public interface VendingMachine
{
public abstract void addCredit( int amount );

public abstract int getCredit();

public abstract boolean sell( int index );

public abstract void returnCredit();

public abstract int getProceeds();
}
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