java array swap
public static void swap(int x, int y, int[] arr) {
int temp = arr[x];
arr[x] = arr[y];
arr[y] = temp;
}java array swap
public static void swap(int x, int y, int[] arr) {
int temp = arr[x];
arr[x] = arr[y];
arr[y] = temp;
}array.swap java
public static final <T> void swap (T[] a, int i, int j) {
T t = a[i];
a[i] = a[j];
a[j] = t;
}
public static final <T> void swap (List<T> l, int i, int j) {
Collections.<T>swap(l, i, j);
}
private void test() {
String [] a = {"Hello", "Goodbye"};
swap(a, 0, 1);
System.out.println("a:"+Arrays.toString(a));
List<String> l = new ArrayList<String>(Arrays.asList(a));
swap(l, 0, 1);
System.out.println("l:"+l);
}Copyright © 2021 Codeinu
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