陣列宣告的中括號[ ] 放在變數的前面或後面都可以 問題二 System.arraycopy(); Arrays.copyOf() 的差異是 ... (String[] args){int ary1[] ={2,4,3,7,5}; int[] ary2=new int[2]; System.arraycopy(ary1, 2, ary2, 0, 2); for(int i =0; i
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