Paper rock Scissors Game inheritance problem

Hello everyone,

I wrote a game which name is in title. But i must write code without using if(comprasion). Can you give me some advice?

there are 4 class. Item, paper, rock, scissors. P, R, S are Item. Item is abstract class.
Thank you.

this program main method:

Quote:

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import java.util.ArrayList;
import java.util.List;

public class GameMain extends Item {

public static void main(String[] args) {

List <Item> itemList = new ArrayList<Item>();
itemList.add(new Paper("Paper"));
itemList.add(new Scissors("Scissors"));
itemList.add(new Stone("Stone"));

for(Item item1: itemList){
for(Item item2:itemList){
System.out.print(item1 + "<--->" + item2 + " ");
item1.match(item2);
}


}

}
}

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How are you representing the players? And their choices?

If you have to do it completely without if statements you have to assign a rank to rock, scissors, paper, e.g. 0, 1, 2. You also have to define a 'decistion matrix' that tells the user who has won, e.g.

Code:

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String[][] win= {
  { "tie", "computer wins", "human wins" },
  { "human wins", "tie", "computer wins" },
  { "computer wins", "human wins", "tie }
};

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The row index is the computer's guess, the column index is the human's guess.

kind regards,

Jos

I'd say use a switch statement.

Quote:

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Originally Posted by imorio

I'd say use a switch statement.

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A switch statement is an if statement in disguise ...

kind regards,

Jos

Quote:

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Originally Posted by JosAH

A switch statement is an if statement in disguise ...

kind regards,

Jos

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A problem is a solution in disguise :D

Quote:

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Originally Posted by imorio

A problem is a solution in disguise :D

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True, and sometimes their disguise is so develish that they look like an entirely other problem ;-)

kind regards,

Jos