Java List size() Method

The size() method of List Interface returns the total number of elements present in this list.

Syntax

Parameters

Return

The size() method returns the number of elements in this list.

Example 1

import java.util.LinkedList;
import java.util.List;
public class JavaListSizeExample1 {
public static void main(String[] args) {
        List<Integer> list= new LinkedList<>();
list.add(34);
list.add(56);
list.add(12);
list.add(43);
System.out.println("List : "+list);
//it will return the total size of the list
int size= list.size();
System.out.println("Total element of the list : "+size);
    }
}

Test it Now

Output:

List : [34, 56, 12, 43]
Total element of the list : 4

Example 2

import java.util.LinkedList;
import java.util.List;
import java.util.ListIterator;
class Student{
    String name;
    String school;
    Student(String name, String school){
this.name=name;
this.school=school;
    }
public String toString() {
return " Name : "+this.name+"       School : "+this.school;
    }
}
public class JavaListSizeExample2 {
public static void main(String[] args) {
        List<Student> list = new LinkedList<>();
        Student s1= new Student("Reema","Gita Convent School");
        Student s2= new Student("Geetu","Gita Convent School");
        Student s3= new Student("Saloni","Eicher School");
list.add(s1);
list.add(s2);
list.add(s3);
//returns the total number of students in the list 
System.out.println("Total students : "+list.size());
for (Student val : list){
System.out.println(val);
        }
    }
}

Test it Now

Output:

Total students : 3
 Name : Reema       School : Gita Convent School
 Name : Geetu       School : Gita Convent School
 Name : Saloni       School : Eicher School

Example 3

import java.util.LinkedList;
import java.util.List;
public class JavaListSizeExample3 {
public static void main(String[] args) {
        List<Character> list= new LinkedList<>();
for (char ch='a';ch<='z';ch++){
list.add(ch);
        }
System.out.println("Total alphabets : "+list.size());
System.out.println("List : "+list);
    }
}

Test it Now

Output:

Total alphabets : 26
List : [a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, z]

Next TopicJava List

← prev next →

Latest Courses

We provides tutorials and interview questions of all technology like java tutorial, android, java frameworks

Contact info

G-13, 2nd Floor, Sec-3, Noida, UP, 201301, India

[email protected].

Python

AI, ML and Data Science

Java

B.Tech and MCA

Web Technology

Software Testing

Technical Interview

Java Interview

Web Interview

Database Interview

Company Interviews

Java Tutorial

Control Statements

Java Object Class

Java Inheritance

Java Polymorphism

Java Abstraction

Java Encapsulation

Java Array

Java OOPs Misc

Java String

Java String Methods

Java Regex

Exception Handling

Java Inner Class

Java Multithreading

Java Synchronization

Java Networking

Java Applet

Java Reflection

Java Conversion

Java JDBC

RMI

Internationalization

Java Array Class

Java AtomicInteger Class

Java AtomicLong Methods

Java Authenticator

Java BigDecimal class

Big Integer Class

Java Boolean class

Java Byte Class

Java Class

Java Collections class

Java Compiler Class

CopyOnWriteArrayList

Java Math Methods

LinkedBlockingDeque

Java Long class

LinkedTransferQueue

Java List

Java MulticastSocket

Java Number Class

Java Phaser Class

ArrayList Methods

Java Thread Methods

Java Projects

Java Programs

Java Misc

Java Date Class

Java ListIterator Class

Java NIO Tutorial

HttpURLConnection

Java Deque

Java HttpCookie Class

Java URL class

Java List Methods

Java Vector class

Java Collection Methods

Java Socket Class

Java Executors

Java List size() Method

Syntax

Parameters

Return

Example 1

Example 2

Example 3

Latest Courses

Contact info