【javaSE】Exception in thread "main" java.lang.ArrayStoreException: java.lang.Integer

public LoopQueue(int capacity){ data = (E [])new Object[capacity+1];//+1 隊列中預留一個空間 用於比較是否隊列滿 front = 0;//初始化頭指針 tail = 0; size = 0; } public void enquene(E e){

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