title: i get Exception in thread "main" java.util.InputMismatchException when running code
body: <blockquote>
    <p>Exception in thread "main" java.util.InputMismatchException
        at java.util.Scanner.throwFor(Unknown Source)
        at java.util.Scanner.next(Unknown Source)
        at java.util.Scanner.nextInt(Unknown Source)
        at java.util.Scanner.nextInt(Unknown Source)
        at PeriodicTable.elementsInt(PeriodicTable.java:54)
        at PeriodicTable.findElement(PeriodicTable.java:107)
        at PeriodicTable.main(PeriodicTable.java:82)</p>
  </blockquote>
  
  <p>is the error i get when running this code. can anyone tell me where i went wrong? for further information, i'm trying to create a code where it pulls from the periodic table and gives you the element information according to your atomic or abbreviation.</p>
  
  <p>this is the code so far:</p>
  
  <pre><code>public class PeriodicTable {
  
      static class PeriodicElement{
          int[] atomicNumber = new int[200];
          double[] atomicMass = new double[200];
          String[][] abbreviation = new String[200][200];
          String[] theTable = new String[200];
  
          public String[] toString(String[] arr){
              String[] s = Arrays.toString(arr).split(" ");
              return s;
          }
  
          public PeriodicElement(String[] pElement) {
              toString(pElement);
  
          }
      }
      public PeriodicTable(String[] theTable) throws IOException{
          Scanner inputFile = new Scanner(new File("/Users/eddie/workspace/PeriodicTable/src/table.txt"));
          while (inputFile.hasNextLine()){
              int i = 0;
              theTable[i] = inputFile.nextLine();
              i++;
          }
          inputFile.close();// close the file when done
      }
  
      public static String[] readTable(String[] table)throws IOException{
          PeriodicTable inputFile = new PeriodicTable(table);
          return table;
      }
  
      public static int elementsInt(int found)throws IOException{
          Scanner inputFile = new Scanner(new File("/Users/eddie/workspace/PeriodicTable/src/table.txt"));
          while (inputFile.hasNextLine()){
              int[] table = new int[200];
              int i = 0;
              table[i] = inputFile.nextInt();
              if (found == table[i]){
                  System.out.println("found your number!");
                  return table[i];
              }
              else
                  i++;
          }
          inputFile.close();// close the file when done.
          return found;
      }
  
      public static void main(String[] args)throws IOException { // Main Method
          final int NUMBER_ELEMENTS = 0;
          Scanner keyboard = new Scanner(System.in);
          String yourName = "your Name";
          System.out.println("Periodic Table by " + yourName);
          System.out.println(" ");
          System.out.println("Number of elements: " + getNumberOfElements(NUMBER_ELEMENTS));
          System.out.println("1. Search atomic number ");
          System.out.println("2. Search abbreviation  ");
          System.out.println("3. Print table ");
          System.out.println("4. Exit ");
          int choice = keyboard.nextInt();
          switch (choice) {
              case 1: System.out.print("Enter an atomic number: ");
                  int aNumber = keyboard.nextInt();
                  findElement(aNumber);
                  System.out.println("your atomic number is: " + findElement(aNumber) );
                  break;
  
              case 2: System.out.print("Enter an abbreviation");
                  String abbreviation = keyboard.next();
                  break;
  
              case 3: String[] everything = new String[200];
                  PeriodicElement print = new PeriodicElement(printTable(everything));
                  for(int i=0; i&lt;everything.length ;i++){
                      System.out.println(print);
                  }
                  break;
  
              case 4: break;
          }
      }
  
      public static int getNumberOfElements(int num){
          return num = 118;
      }
  
      public static int findElement(int e1)throws IOException {
          return elementsInt(e1);
      }
  
      public static String[] printTable(String[] display)throws IOException{
          PeriodicElement printAll = new PeriodicElement(printTable(display));
          for(int i=0; i&lt;display.length ;i++){
              System.out.println(printAll);
          }
          return display;
      }
  }
  </code></pre>