Head Firstデザインパターン 第2版 ―頭とからだで覚えるデザインパターンの基本

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6

章

リモコンを実装する

public class RemoteControl {

Command[] onCommands;

Command[] offCommands;

public RemoteControl() {

onCommands = new Command[7];

offCommands = new Command[7];

Command noCommand = new NoCommand();

for (int i = 0; i < 7; i++) {

onCommands[i] = noCommand;

offCommands[i] = noCommand;

}

}

public void setCommand(int slot, Command onCommand, Command offCommand) {

onCommands[slot] = onCommand;

offCommands[slot] = offCommand;

}

public void onButtonWasPushed(int slot) {

onCommands[slot].execute();

}

public void offButtonWasPushed(int slot) {

offCommands[slot].execute();

}

public String toString() {

StringBuffer stringBuff = new StringBuffer(); ...