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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                ## 數組元素修改 傳遞給 **Arrays.setAll()** 的生成器函數可以使用它接收到的數組索引修改現有的數組元素: ```JAVA // arrays/ModifyExisting.java import java.util.*; import onjava.*; import static onjava.ArrayShow.*; public class ModifyExisting { public static void main(String[] args) { double[] da = new double[7]; Arrays.setAll(da, new Rand.Double()::get); show(da); Arrays.setAll(da, n -> da[n] / 100); // [1] show(da); } } /* Output: [4.83, 2.89, 2.9, 1.97, 3.01, 0.18, 0.99] [0.0483, 0.028900000000000002, 0.028999999999999998, 0.0197, 0.0301, 0.0018, 0.009899999999999999] */ ``` [1] Lambdas在這里特別有用,因為數組總是在lambda表達式的范圍內。
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