Question

Write a Java program that displays the following menu to the user (and allows the user to make a valid selection): 1- Tournament Selection 2- Magic Squares 3 -Arrival Time 4- Quit Once a valid selection is made, your program will run the appropriate code for each program. The description for each program is as follows: In a tournament, each player plays six games and then they are 1 - Tournament Selection: placed in a specific group based on their results and according to the following table: Result Number of Wins Group 1 5 or 6 Group 2 3 or 4 Group 3 1 or 2 Eliminated 0 Write a program that determines which group a player is placed in. The input consists of a line with a number N (1 s N s 100) representing the number of players followed by another N lines each having six letters separated by a comma (a W indicating a win or L indicating a loss) representing the results of each of the N players. The output will be the player's results and placement based on the given table. The text file named P1DATA.TXT contains the input data. Output: Explanation: Input W,L,W,W,L,W [WLWWLW]: Group 2 4 wins sets player in Group 2 L,L,L,L,L,L Eliminated 0 wins eliminates player

Answer 1

Here's your full working code as asked in the question...

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.FileReader;
import java.util.ArrayList;
import java.util.List;
import java.util.Arrays;
import java.io.File;
import java.util.*;
class test{
   static void option1(String arr[],int n){
       for(int i=0;i<n;i++){
           String inp = arr[i];
           int wins = 0;
           String res = "";
           for(int j=0;j<inp.length();j+=2){
               if(inp.charAt(j)=='W')
                   wins++;
               res += inp.charAt(j);
           }
           if(wins>=5){
               System.out.println("["+res+"]:Group 1\n");
           }else if(wins>=3){
               System.out.println("["+res+"]:Group 2\n");
           }else if(wins>=1){
               System.out.println("["+res+"]:Group 3\n");
           }else{
               System.out.println("Eliminated\n");
           }
       }
   }
   public static void main(String a[]){
       int option;
       Scanner sc = new Scanner(System.in);
       while(true){
           System.out.println("1-Tournament Selection\n");
           System.out.println("2-Magic Squares\n");
           System.out.println("3-Arrival Time\n");
           System.out.println("4-Quit\n");
           option = sc.nextInt();
           if(option==1){
               try{
               File file = new File("F:\\input.txt");
               sc = new Scanner(file);
               int n = Integer.parseInt(sc.nextLine());
               String arr[] = new String[n];
               int i = 0;
               while(sc.hasNextLine())
                   arr[i++] = sc.nextLine();
               option1(arr,n);
              
               break;
               }catch(Exception e){
               }
           }else if(option==2){
               break;
           }else if(option==3){
               break;
           }else if(option==4){
               break;
           }else{
               System.out.println("Please select a valid option\n");
               continue;
           }
       }
}
}