通過Arrays類可以實現對數組的排序、查找、比較等操作,從而優化Java代碼的執行效率和代碼簡潔度。以下是一些使用Arrays類優化Java代碼的示例:
int[] arr = {4, 2, 7, 1, 5};
Arrays.sort(arr);
int index = Arrays.binarySearch(arr, 7);
int[] arr1 = {1, 2, 3};
int[] arr2 = {1, 2, 3};
boolean isEqual = Arrays.equals(arr1, arr2);
int[] copyArr = Arrays.copyOf(arr, arr.length);
int[] arr = new int[5];
Arrays.fill(arr, 5);