Vector.indexOf(Object o) has the following syntax.
public int indexOf(Object o)
In the following code shows how to use Vector.indexOf(Object o) method.
// ww w . j av a 2 s .com import java.util.Vector; public class Main { public static void main(String[] args) { Vector vec = new Vector (4); vec.add(4); vec.add(3); vec.add(2); vec.add(3); // let us get the index of 3 System.out.println("Index of 3 is :"+vec.indexOf(3)); } }
The code above generates the following result.