import java.util.Scanner;

public class StringReverse {

public static void main(String[] args) {

Scanner sc= new Scanner(System.in);

System.out.print("Enter a string: ");

String s= sc.nextLine();

//PRINTING ORIGINAL STRING

char c[]= s.toCharArray();

for(int i=0; i<c.length; i++){

System.out.print(c[i]);

}

System.out.println();

//METHOD 1: REVERSE STRING

String str="";

char ch;

for(int i=c.length-1; i>=0; i--){

ch= s.charAt(i);

str+=ch;

}

System.out.println(str);

//METHOD2: REVERSE STRING

String str2="";

char c2[]= new char[c.length];

for(int i=0; i<c2.length; i++){

c2[i]= c[c.length-i-1];

str2= str2 + c2[i];

}

System.out.println(str2);

//COUNT CHARACTERS IN A STRING

int count=0;

for(int i=0; i<c.length; i++){

count++;

}

System.out.println("String length: " + count);

}

}