How To Convert Array to ArrayList

Let’s see some sample programs on how to convert Array to ArrayList

Sample Program 1:

package classFiveArrays; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; public class ConvertArrayToArrayList {	public static void main (String [] args){	//Using asList	String[] students = {"Raj", "Kumar", "Rajkumar"};	ArrayList<String> arrList = new ArrayList<>(Arrays.asList(students));	arrList.add("Ramesh");	arrList.add("Bala");	System.out.println(arrList);	System.out.println(arrList.get(2));	} } 

Output:

[Raj, Kumar, Rajkumar, Ramesh, Bala] Rajkumar [Raj, Kumar, Rajkumar, Ramesh, Bala]

Sample Program 2:

package classFiveArrays; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; public class ConvertArrayToArrayList {	public static void main (String [] args){	//Using Collection.addAll	String[] students = {"Raj", "Kumar", "Rajkumar"};	ArrayList<String> arrList = new ArrayList<String>();	Collections.addAll(arrList, students);	arrList.add("Hello");	System.out.println(arrList);	} } 

Output:

[Raj, Kumar, Rajkumar, Hello]

Sample Program 3:

package classFiveArrays; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; public class ConvertArrayToArrayList {	public static void main (String [] args){ ArrayList<String> arrList= new ArrayList<String>(); String array[] = {"Raj","Kumar","Rajkumar"}; //array.length returns the current number of elements present in array for(int i =0;i<array.length;i++) {	//We are adding each array's element to the ArrayList	arrList.add(array[i]); } System.out.println(arrList); /*ArrayList content*/ for(String str: arrList) { System.out.println(str); }	} }

Output:

[Raj, Kumar, Rajkumar] Raj Kumar Rajkumar

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