List Merge Remove - Java Algorithm

Java examples for Algorithm:List

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Description

List Merge Remove

Demo Code


import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class Main {
  
  public static void main(String args []){
    /*from  www .ja va 2 s.co  m*/
    List <Integer> l1= new ArrayList<>();    
    l1.add(22);
    l1.add(2);
    l1.add(1);
    l1.add(23);
    l1.add(22);
    l1.add(15);
    l1.add(98);
      
    List <Integer> backupL1= new ArrayList <>(l1);
    
    List <Integer> l2= new ArrayList<>();    
    l2.add(2);
    l2.add(16);
    l2.add(1);
    l2.add(23);
    l2.add(37);
    l2.add(80);    
    
    l1.removeAll(l2);    
    l2.removeAll(backupL1);
    
    System.out.println(l1);
    System.out.println(l2);
/*    
    List <Integer> finalList = new ArrayList<>(l1);
    finalList.addAll(l2);
    System.out.println("Final List  :" + finalList);
    */    
    l2.addAll(l1);
    Collections.sort(l2);
    System.out.println("List after removing common elements ::" +l2);
        
  }

}

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