Java Vector sort() Method with Examples

by Online Tutorials Library July 22, 2014

Java Vector sort() Method

The sort() method of Java Vector class is used to sort the vector according to the order induced by the specified Comparator.

Syntax

Following is the declaration of a sort() method:

Parameter

Parameter	Description	Required/Optional
c	It is the Comparator which is used to compare vector elements.	Required

Return

This method has return type void so, it does not return anything.

Exceptions

Compatibility Version

Java 1.2 and above

Example 1

  import java.util.*;  public class VectorSortExample1 {    public static void main(String arg[]) {      //Create an empty vector       Vector<Integer> vec = new Vector<>();      //Add elements in the vector      vec.add(1);      vec.add(5);      vec.add(2);      vec.add(4);      vec.add(3);      //Display the vector elements      System.out.println(“Components of the vector: “+vec);                  //Sorting the vector            Collections.sort(vec);            //Displaying the vector elements after sort() method            System.out.println(“Components of the vector after sorting: “+vec);                                       }  }  

Test it Now

Output:

Components of the vector: [1, 5, 2, 4, 3]  Components of the vector after sorting: [1, 2, 3, 4, 5]

Example 2

  import java.util.*;  public class VectorSortExample2 {    public static void main(String arg[]) {      //Create an empty vector      Vector < String > vec = new Vector < String > ();      //Add elements in the vector      vec.add(“White”);      vec.add(“Green”);      vec.add(“Black”);      vec.add(“Orange”);      System.out.println(“The vector elements are: “);      //Display the vector elements            for (String colors : vec) {                                    System.out.println(”  “+colors);       }                    //Sorting the vector            Collections.sort(vec);            //Displaying the vector elements after sort() method            System.out.println(“The vector elements after sort() method are: “);             for (String colors : vec) {                                    System.out.println(”  “+colors);         }                                   }  }  

Test it Now

Output:

The vector elements are:     White    Green    Black    Orange  The vector elements after sort() method are:     Black    Green    Orange    White

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