Java Program to copy value from one list to another list

Let’s say the following is our array −

String[] str = { "P", "Q", "R", "S", "T", "U", "V", "W" };

Now set the elements of the above array to a new List −

int len = str.length;
List<String>list1 = new ArrayList<String>();
for (int i = 0; i < len; i++)
   list1.add(str[i]);

Consider a new List with no elements −

List<String>list2 = new ArrayList<String>();
for (int i = 0; i < len; i++)
   list2.add("");

Now copy value from one list to another −

Collections.copy(list2,list1);

Example

 Live Demo

import java.util.ArrayList;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import java.util.ListIterator;
public class Demo {
   public static void main(String[] args) {
      String[] str = { "P", "Q", "R", "S", "T", "U", "V", "W" };
      int len = str.length;
      List<String>list1 = new ArrayList<String>();
      for (int i = 0; i < len; i++)
         list1.add(str[i]);
      List<String>list2 = new ArrayList<String>();
      for (int i = 0; i < len; i++)
         list2.add("");
      Collections.copy(list2,list1);
      ListIterator<String>iterator = list2.listIterator();
      System.out.println("New List...");
      while (iterator.hasNext())
         System.out.println(iterator.next());
   }
}

Output

New List...
P
Q
R
S
T
U
V
W

Samual Sam

Updated on 30-Jul-2019 22:30:25

• Related Questions & Answers
• How do you copy an element from one list to another in Java?
• How to copy a list to another list in Java?
• Java Program to copy all the key-value pairs from one Map into another
• How to write a program to copy characters from one file to another in Java?
• Copy all the elements from one set to another in Java
• Python program to mask a list using values from another list
• Copy values from one array to another in Numpy
• Java Program to construct one String from another
• Java Program to Call One Constructor from another
• C# program to copy a range of bytes from one array to another
• How can we copy one array from another in Java
• How to copy a table from one MySQL database to another?
• How to copy files from one folder to another using Python?
• How to copy files from one server to another using Python?
• How to copy rows from one table to another in MySQL?