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class?b?{????public?static?void?main(String[]?args)?{????????int[]?a?=?{1,2,3,4,5,6};????????????????//定義原數(shù)組????????for?(int?i?=?0;i?<?a.length/2;?i++)?{???//前一半和后一半交換????????????int?temp?=?a[i];????????????????????????????????a[i]?=?a[a.length-1-i];????????????????????????a[a.length-1-i]?=?temp;????????}?????????for?(int?i?=?0;i?<?a.length;?i++)?{?????//遍歷打印交換后的數(shù)組????????????System.out.print(a[i]);?????????}????}}