Program

Question

import java.util.*;
public class Program
{
public static void main(String[] args) {
Scanner sc=new Scanner(System.in);
String st=sc.next();
int a=st.length();
int len=0;
int len2=1;
for(int i=0;i<=a;i++){
char ch=st.charAt(i);
len++;
if (ch=='.'||ch=='@'||ch==')'||ch=='('||ch=='/'||ch=='-'||ch=='!'||ch=='

Answer 1

Amran

Index starts from 0 so if length is 5 then iteration will work till < not <=

if you use <= it means you are accessing character at index 5 but as index starts from 0 so you need to access value at (5 - 1) = 4th index

Answer 2

Thank you sir for explaining

Answer 3

i < a;

Answer 4

Thank you.Can you please explain