copy arraylist java
List<Something> original=new ArrayList<>();
//insert elements
List<Something> copy=new ArrayList<>(original);//create copy here
System.out.println(copy.equals(original));//true because the copy has the same elements
System.out.println(copy==original);//false because it is another ListArrayList clone() method in java
import java.util.ArrayList;
public class ArrayListCloneMethodExample
{
public static void main(String[] args)
{
ArrayList<String> al = new ArrayList<String>();
al.add("violet");
al.add("indigo");
al.add("blue");
al.add("green");
al.add("yellow");
System.out.println("ArrayList before using clone() method: " + al);
// create another ArrayList and copy
ArrayList<String> arrClone = new ArrayList<String>();
arrClone = (ArrayList)al.clone();
System.out.println("ArrayList after using clone() method: " + arrClone);
}
}Copyright © 2021 Codeinu
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