?? pricevisitor.java
字號:
package com.javapatterns.visitor.inventory;
public class PriceVisitor extends Visitor
{
private float total;
public PriceVisitor()
{
total = 0;
}
public float value()
{
return total;
}
public void visitCase(Case e)
{
total += e.price();
}
public void visitCpu(Cpu e)
{
total += e.price();
}
public void visitHardDisk(HardDisk e)
{
total += e.price();
}
public void visitIntegratedBoard(IntegratedBoard e)
{
total += e.price();
}
public void visitMainBoard(MainBoard e)
{
total += e.price();
}
public void visitPc(Pc e)
{
total += e.price();
}
}
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