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);
}

Source: stackoverflow.com

Similar codes

3 votes144 views2 answers
How to get SHA fingerprint from jks file?
Java
3 votes137 views1 answer
Regrex for letter in java
Java
-1 vote133 views1 answer
Can a method be abstract and final in abstract class
Java
1 vote127 views2 answers
Spring annotations xml configuration
Java
3 votes153 views1 answer
Check if string is only white space java
Java
0 vote143 views1 answer
Using automapper without dependency injection
Java
0 vote139 views1 answer
Sudo visudo quit without saving
Java
0 vote236 views2 answers
How to delete image from folder in Android programmatically
Java
0 vote132 views1 answer
Barcode design in postgresql
Java
2 votes150 views1 answer
Link to method javadoc
Java