Hi

can you help me??

I don`t know what I do!

import java.util.Scanner;

public class Main {

public static void main(String[] args) {

    Scanner cin = new Scanner(System.in);
    int num = cin.nextInt();
    String str = "";
    int i = 0;
    while(i <= num){         
        str = cin.nextLine();
        char[] name = str.toCharArray();
        int x = name.length;
        for(int j = x - 1  ; j >= 0 ; j--){
            System.out.print(name[j]);
            if(j == 0)
                System.out.println();
        }           
        i++;
    }

}

}

After pasting your code here, please add 3 backtick characters (`) before and after your code block. This makes your code to be well-formatted.

About your code:

• Start i from 1, not zero.
• Always, when you want to read the whole line after reading just and integer, put a readline command after reading the integer. Like this:

```

int num = cin.nextInt(); cin.nextLine(); // read the rest of the line after the integer String str = ""; int i = 1;

while(i <= num){
str = cin.nextLine(); char[] name = str.toCharArray();

```

• There might be empty lines in the input, you should print the \n for them too. So bring System.out.println(); after the loop.

``` import java.util.Scanner; public class Main { public static void main(String[] args) {

Scanner cin = new Scanner(System.in);
int num = cin.nextInt();
cin.nextLine();
String str = "";
int i = 1;
while(i <= num){         
    str = cin.nextLine();
    char[] name = str.toCharArray();
    int x = name.length;
    for(int j = x - 1  ; j >= 0 ; j--){
        System.out.print(name[j]);
    }
    System.out.println();
    i++;
}

} } ```

thank you so much!

Hi! public static void main(String[] args) { Scanner in = new Scanner(System.in);

    int t = in.nextInt();
    in.nextLine();
    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < t; i++) {
        sb.append(new StringBuilder(in.nextLine()).reverse()).append("\n");
    }
    System.out.print(sb);
}