size() Method : Java.util.ArrayList

Declaration :

public boolean contains(Object obj)

1	public boolean contains(Object obj)

Explanation :

Purpose	Method returns the size of ArrayList
Parameters	NA
Return Value	Number of elements in this list
Exception	NA

Example

The following example shows the usage of java.util.Arraylist.size() method.

package com.c4learn.arraylist;
import java.util.ArrayList;
public class ArrayListExamples {
  public static void main(String args[]) {
    // Create ArrayList 1
    ArrayList<String> arrlist1 = new ArrayList<String>(5);
    // Fill Elements in ArrayList 1
    arrlist1.add("A");
    arrlist1.add("B");
    arrlist1.add("C");
    // Print ArrayList
    for (String str : arrlist1) {
      System.out.println("List Element : " + str);
    }
    // Calculate Size of List
    int length = arrlist1.size();
    System.out.println("ArrayList Size : " + length);
  }
}

package com.c4learn.arraylist;

import java.util.ArrayList;

public class ArrayListExamples {

public static void main(String args[]) {

// Create ArrayList 1

ArrayList<String> arrlist1 = new ArrayList<String>(5);

// Fill Elements in ArrayList 1

arrlist1.add("A");

arrlist1.add("B");

arrlist1.add("C");

// Print ArrayList

for (String str : arrlist1) {

System.out.println("List Element : " + str);

}

// Calculate Size of List

int length = arrlist1.size();

System.out.println("ArrayList Size : " + length);

}

Output :

List Element : A
List Element : B
List Element : C
ArrayList Size : 3

List Element : A

List Element : B

List Element : C

ArrayList Size : 3