import java.util.;
public class dup
{
public static void duplicates(String str,int index)
{
if(index==str.length())
{
System.out.println(str);
return;
}
if(str.charAt(index)==str.charAt(index+1) && (index+1)!=str.length())
{
String res=str.substring(0,index)+""+str.substring(index);
duplicates(res, index+2);
}
else
duplicates(str, index+1);
}
public static void main(String[] args)
{
duplicates("hello", 0);
}
}
Hi Ashish,
Your code will go out of bounds as array index will go till 6. Since strings are immutable (i.e. no modification is allowed) I urge you to use stringbuilder to return your answer.
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