Question

How to iterate over an ArrayList in Java

Answer 1

import java.util.ArrayList;

public class MyClass {
    public static void main(String args[]) {
        ArrayList<String> al = new ArrayList<>();
        
        al.add("Java");
        al.add("C++");
        al.add("Python");
        al.add("C");
        al.add("PHP");

        for (String s : al) {
            System.out.println(s);
        }
    }
}
 
 
 
 
/*
run:
   
Java
C++
Python
C
PHP
 
*/

 

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Answer 2

import java.util.ArrayList;

public class MyClass {
    public static void main(String args[]) {
        ArrayList<String> al = new ArrayList<>();
        
        al.add("Java");
        al.add("C++");
        al.add("Python");
        al.add("C");
        al.add("PHP");

        for (int i = 0; i < al.size(); i++) {
            System.out.println(al.get(i));
        }
    }
}
 
 
 
 
/*
run:
   
Java
C++
Python
C
PHP
 
*/

 

70+ SQL courses for beginners and professionals

Answer 3

import java.util.ArrayList;
import java.util.Iterator;

public class MyClass {
    public static void main(String args[]) {
        ArrayList<String> al = new ArrayList<>();
        
        al.add("Java");
        al.add("C++");
        al.add("Python");
        al.add("C");
        al.add("PHP");

        Iterator it = al.iterator();
        while (it.hasNext()) {
            System.out.println(it.next());
        }
    }
}
 
 
 
 
/*
run:
   
Java
C++
Python
C
PHP
 
*/

 

70+ SQL courses for beginners and professionals