package assignments;
import java.util.*;

public class StringUtil {
    static String stringOne;
    public StringUtil(){
        @SuppressWarnings("resource")
		Scanner in = new Scanner(System.in);
        System.out.print("Enter your String:");
        stringOne = in.nextLine();
    }
    public void backwards (String backward){
        StringBuffer buffer = new StringBuffer(backward);
        buffer = buffer.reverse();
        backward = buffer.toString();
        System.out.println("The Word Backwards:"+backward);
    }

    public void check(String string3){
    	StringBuffer buffer = new StringBuffer(string3);
        buffer = buffer.reverse();
        String string4 = buffer.toString();
    	if(string3.equals(string4)){
    		System.out.println("TRUE");
    	}
    	else
    		System.out.println("FALSE");
    }

    public static void main(String[]args){
        StringUtil word = new StringUtil();
        word.backwards(stringOne);

        word.check(stringOne);
    }
}

//Anirudh Maddula

package assignments;

public class RomanNumerals {
	  public static void rome(int roman){
          if(4000>roman || roman > 0){
              if(roman >= 1000){
                  int M = roman/1000;
                  if(M == 4){
                      System.out.print("MMMM");
                      rome(roman-4000);
                  }
                  if(M == 3){
                      System.out.print("MMM");
                      rome(roman-3000);
                  }
                  if(M == 2){
                      System.out.print("MM");
                      rome(roman-2000);
                  }
                  if(M == 1){
                      System.out.print("M");
                      rome(roman-1000);
                  }
              }
              if(roman >= 500){
                  int D = roman/500;
                  if (D == 1){
                      System.out.print("D");
                      rome(roman-500);
                  }
              }
              if(roman >= 100){
                  int C = roman/100;
                  if (C == 4){
                      System.out.print("CD");
                      rome(roman-400);
                  }
                  if (C == 3){
                      System.out.print("CCC");
                      rome(roman-300);
                  }
                  if (C == 2){
                      System.out.print("CC");
                      rome(roman-200);
                  }
                  if (C == 1){
                      System.out.print("C");
                      rome(roman-100);
                  }
              }
              if(roman >= 50){
                  int L = roman/50;
                  if(L == 1){
                      System.out.print("L");
                      rome(roman-50);
                  }
              }
              if(roman >= 10){
                  int X = roman/10;
                  if (X == 1){
                      System.out.print("X");
                      rome(roman-10);
                  }
                  if (X == 2){
                      System.out.print("XX");
                      rome(roman-20);
                  }
                  if (X == 3){
                      System.out.print("XXX");
                      rome(roman-30);
                  }
                  if(X == 4){
                      System.out.print("XL");
                      rome(roman-40);
                  }
              }
              if(roman >= 5){
                  int V = roman/5;
                  if(V == 1){
                      System.out.print("V");
                      rome(roman-5);
                  }
              }
              if(roman >= 1){
                  int I = roman/1;
                  if(I == 1){
                      System.out.print("I");
                      rome(roman-1);
                  }
                  if(I == 2){
                      System.out.print("II");
                      rome(roman-2);
                  }
                  if(I == 3){
                      System.out.print("III");
                      rome(roman-3);
                  }
                  if(I == 4){
                      System.out.print("IV");
                      rome(roman-4);
                  }
              }
          }
          else
              System.out.println("I'm Sorry, Dave, I can't Answer That Question.");
          return;
      }
      public static void arabic(String arab){
          System.out.println("Enter the Roman Numerals One Grouping At A Time.");
          int mil = 0;
          int cent = 0;
          int dec = 0;
          int demi = 0;
          int dix = 0;
          int hand = 0;
          int uno = 0;
          if(arab.contains(" MMMM ")){
              mil = 4000;
          }
          if(arab.contains(" MMM ")){
              mil = 3000;
          }
          if(arab.contains(" MM ")){
              mil = 2000;
          }
          if(arab.contains(" M ")){
              mil = 1000;
          }
          if(arab.contains(" D ")){
              demi = 500;
          }
          if(arab.contains(" CD ")){
              cent = 400;
          }
          if(arab.contains(" CCC ")){
              cent = 300;
          }
          if(arab.contains(" CC ")){
              cent = 200;
          }
          if(arab.contains(" C ")){
              cent = 100;
          }
          if(arab.contains(" L ")){
              dec = 50;
          }
          if(arab.contains(" XL ")){
              dix = 40;
          }
          if(arab.contains(" XXX ")){
              dix = 30;
          }
          if(arab.contains(" XX ")){
              dix = 20;
          }
          if(arab.contains(" X ")){
              dix = 10;
          }
          if(arab.contains(" V ")){
              hand = 5;
          }
          if(arab.contains(" IV ")){
              uno = 4;
          }
          if(arab.contains(" III ")){
              uno = 3;
          }
          if(arab.contains(" II ")){
              uno = 2;
          }
          if(arab.contains(" I ")){
              uno = 1;
          }

          System.out.println("");
          System.out.println("Arabic Value of Roman Numerals: " + (uno+dix+demi+cent+mil+dec+hand));
      }
      public static void main(String[] args) {
          RomanNumerals.rome(1234);
          RomanNumerals.arabic(" M CC XXX IV ");
      }
}