Java Examples - Get the Index Value of Vector Elements
Java ExamplesThe following example demonstrates using the sort() method of the Collections class to sort a vector and using the binarySearch() method to get the index value of vector elements:
Main.java file
import java.util.Collections;
import java.util.Vector;
public class Main {
public static void main(String[] args) {
Vector v = new Vector();
v.add("X");
v.add("M");
v.add("D");
v.add("A");
v.add("O");
Collections.sort(v);
System.out.println(v);
int index = Collections.binarySearch(v, "D");
System.out.println("The index value of the element is:" + index);
}
}
The output of running the above code is:
[A, D, M, O, X] 元素索引值为 : 1Other Extensions