Answer Posted / hemalatha

import java.util.*;
class DupString
{
public static void main(String args[])
{
int i,j,len;
String s=new String();
Scanner sc=new Scanner(System.in);
System.out.println("Enter string");
s=sc.next();
len=s.length();
char[] s1=s.toCharArray();
for(i=0;i<len;i++)
{
for(j=i+1;j<len;j++)
{
if(s1[i]==s1[j])
{ if(s1[j]!='')
{
System.out.println(" "+s1[i]);
s1[j]='';
len--;
break;
}
}
}
}
}
}

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