Java Vector toString() Method

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Description

The Java Vector toString() method is used to return a string representation of this Vector, containing the String representation of each element.

Declaration

Following is the declaration for java.util.Vector.toString() method

public String toString()

Parameters

NA

Return Value

The method call returns a string representation of this collection.

Exception

NA

Getting String representation from a Vector of Integer Example

The following example shows the usage of Java Vector toString() method. We're adding couple of Integers to the Vector object using add() method calls per element and string representation of vector is printed using toString() method.

package com.tutorialspoint;

import java.util.Vector;

public class VectorDemo {
   public static void main(String[] args) {
      
      // create an empty array list 
      Vector<Integer> vector = new Vector<>();

      // use add() method to add elements in the vector
      vector.add(20);
      vector.add(30);
      vector.add(20);
      vector.add(30);
      vector.add(15);
      vector.add(22);
      vector.add(11);

      // let us print the vector
      System.out.println("Vector = " + vector.toString());
   }
}

Output

Let us compile and run the above program, this will produce the following result −

Vector = [20, 30, 20, 30, 15, 22, 11]

Getting String representation from a Vector of String Example

The following example shows the usage of Java Vector toString() method. We're adding couple of String to the Vector object using add() method calls per element and string representation of vector is printed using toString() method.

package com.tutorialspoint;

import java.util.Vector;

public class VectorDemo {
   public static void main(String[] args) {
      
      // create an empty array list
      Vector<String> vector = new Vector<>();

      // use add() method to add elements in the vector
      vector.add("Welcome");
      vector.add("To");
      vector.add("Tutorialspoint");

      // let us print the vector
      System.out.println("Vector = " + vector.toString());   
   }
}

Output

Let us compile and run the above program, this will produce the following result −

Vector = [Welcome, To, Tutorialspoint]

Getting String representation from a Vector of Object Example

The following example shows the usage of Java Vector toString() method. We're adding couple of Student objects to the Vector object using add() method calls per element and string representation of vector is printed using toString() method.

package com.tutorialspoint;

import java.util.Vector;

public class VectorDemo {
   public static void main(String[] args) {

      // create an empty vector
      Vector<Student> vector = new Vector<>();

      // use add() method to add elements in the vector
      vector.add(new Student(1, "Julie"));
      vector.add(new Student(2, "Robert"));
      vector.add(new Student(3, "Adam"));
	  
      // let us print the vector
      System.out.println("Vector = " + vector.toString());    
   }
}
class Student {
   int rollNo;
   String name;

   Student(int rollNo, String name){
      this.rollNo = rollNo;
      this.name = name;
   }

   @Override
   public String toString() {
      return "[ " + this.rollNo + ", " + this.name + " ]";
   }
}

Output

Let us compile and run the above program, this will produce the following result −

Vector = [[ 1, Julie ], [ 2, Robert ], [ 3, Adam ]]