How to swap two elements in a vector ?
Following example.
import java.util.Collections; import java.util.Vector; public class Main { public static void main(String[] args) { Vector<String> v = new Vector<String>(); v.add("1"); v.add("2"); v.add("3"); v.add("4"); v.add("5"); System.out.println(v); Collections.swap(v, 0, 4); System.out.println("After swapping"); System.out.println(v); } }
The above code sample will produce the following result.
1 2 3 4 5 After swapping 5 2 3 4 1
The following is an another sample example to swap two elements in a vector ?
import java.util.Vector; import java.util.Collections; public class Demo { public static void main(String[] args) { Vector v = new Vector(); v.add("1"); v.add("2"); v.add("3"); v.add("4"); v.add("5"); Collections.swap(v,0,4); System.out.println("Result after swap Vector contains : " + v); } }
The above code sample will produce the following result.
Result after swap Vector contains : [5, 2, 3, 4, 1]