Try this........
Code:
import java.io.*;
public class A{
public static void main(String[] args){
try{
BufferedReader buff = new BufferedReader(new InputStreamReader(System.in));
System.out.println("Please enter your first character");
String firstchar = buff.readLine();
System.out.println("Please enter your last character");
String lastchar = buff.readLine();
char c1 = firstchar.charAt(0);
char c2 = lastchar.charAt(0);
if(c1 > c2){
System.out.println("First char comes after second char");
}else{
System.out.println("First character comes before last char");
}
for (char ascii = c1; ascii <= c2; ++ascii){
System.out.print(ascii);
}
}catch(IOException e){System.err.println(e);}
}
}