Hi...! i wan to write a program that when i give it a number and a string it replace string with length=number to "1,2...,n" but its replace part doesn't work!
this is the code:
package fasle5;
import java.util.Scanner;
public class Tamrine8 {
public static void main(String args[]){
System.out.println("Enter N:");
Scanner input =new Scanner(System.in);
int n=input.nextInt();
System.out.println("Enter String:");
Scanner input1 =new Scanner(System.in);
String str=input1.nextLine();
String s=new String();
for(int i=1;i<=n;i++)
{
s=s+String.valueOf(i);
}
String string[]=str.split(" ");
for(int j=0;j<string.length;j++)
{
System.out.println("K"+string[j]);
if(string[j].length()==n)
{
string[j].replace(string[j].substring(j, n), s);
System.out.println(string[j].substring(j, n));
}
}
for(int k=0;k<string.length;k++)
{
System.out.print(string[k]);
}
}
}
what is the problem?
