关于Java中NullPointerException异常的请教

Question

public class Distribution {
    private Idiot [] idiot;
    public Distribution(){
        this.idiot=new Idiot[5];
        Chopsticks [] cp = new Chopsticks[5];
        for(int i=0; i<5;i++){
            this.idiot[i].setLEFT_CHOPSTICKS(cp[i]);   //报错是这里有问题
            if(i == 0){
                this.idiot[i].setRIGHT_CHOPSTICKS(cp[4]);
            }else{
                this.idiot[i].setRIGHT_CHOPSTICKS(cp[i-1]);
            }
        }
    }
    public static void main(String [] args)
    {
        Distribution distribution = new Distribution();
    }
}

 public class Idiot {
    private Chopsticks LEFT_CHOPSTICKS=null;
    private Chopsticks RIGHT_CHOPSTICKS=null;
    public Chopsticks getLEFT_CHOPSTICKS() {
        return LEFT_CHOPSTICKS;
    }
    public void setLEFT_CHOPSTICKS(Chopsticks left_chopsticks) {
        LEFT_CHOPSTICKS = left_chopsticks;
    }
    public Chopsticks getRIGHT_CHOPSTICKS() {
        return RIGHT_CHOPSTICKS;
    }
    public void setRIGHT_CHOPSTICKS(Chopsticks right_chopsticks) {
        RIGHT_CHOPSTICKS = right_chopsticks;
    }

}

 public class Chopsticks {
    private boolean USING_STATE;

    public Chopsticks(){
        this.USING_STATE=false;
    }

    public void setUSING_STATE(boolean using_state) {
        USING_STATE = using_state;
    }

    public boolean isUSING_STATE() {
        return USING_STATE;
    }

}

 Exception in thread "main" java.lang.NullPointerException
    at Distribution.<init>(Distribution.java:8)
    at Distribution.main(Distribution.java:18)

请问是哪里有问题 该怎么改

Answer 1

idiot和cp都没有初始化吧