package org.cmania;
import java.util.ArrayList;
import java.util.List;
public class DuplicayFound
{
public static void main(String[] args)
{
List<Integer> list = new ArrayList<Integer>();
for (int i = 1; i <= 10; i++) {
list.add(i);
}
list.add(5); //add duplicate number in list.
list.add(10); //add another duplicate number in list.
findDuplicateNumbersInList(list);
}
/*
* Method prints duplicate numbers in List and returns list of non-duplicate numbers.
*/
public static List<Integer> findDuplicateNumbersInList(List<Integer> list)
{
List<Integer> listWithoutDuplicates = new ArrayList<Integer>();
System.out.println("list is: "+list);
System.out.print("Duplicate numbers in list are: ");
for (int i : list)
{
if (listWithoutDuplicates.contains(i))
System.out.print(i+" ");
else
listWithoutDuplicates.add(i);
}
return listWithoutDuplicates;
}
}
import java.util.ArrayList;
import java.util.List;
public class DuplicayFound
{
public static void main(String[] args)
{
List<Integer> list = new ArrayList<Integer>();
for (int i = 1; i <= 10; i++) {
list.add(i);
}
list.add(5); //add duplicate number in list.
list.add(10); //add another duplicate number in list.
findDuplicateNumbersInList(list);
}
/*
* Method prints duplicate numbers in List and returns list of non-duplicate numbers.
*/
public static List<Integer> findDuplicateNumbersInList(List<Integer> list)
{
List<Integer> listWithoutDuplicates = new ArrayList<Integer>();
System.out.println("list is: "+list);
System.out.print("Duplicate numbers in list are: ");
for (int i : list)
{
if (listWithoutDuplicates.contains(i))
System.out.print(i+" ");
else
listWithoutDuplicates.add(i);
}
return listWithoutDuplicates;
}
}
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