How to send data from one class to another class

• • Reply

  13 years ago

  by bigCountry

  John Wiley

  , United States

  Joined 13 years ago

  Hi, I want to send the values that the user enters and I am storing them in several arrays in the IntegerSetTest class. It need to be sended to the IntergerSet class to find the union, intersection, etc.

  Here is IntegerSetTest class:

  import java.util.*;

  public class IntegerSetTest

  { 

      public static void main(String args[])

      {

          Scanner input = new Scanner(System.in);

          String inputValue;

   

          String strArray1[] = new String[100];

          int countInts = 0;

          for(int i = 0; i < strArray1.length; i++)

          {

              System.out.println("Enter integers for set A. (Press any other key to finish set). ");

              inputValue = input.next();

              try

              {

                  Integer.parseInt(inputValue);

                  strArray1[i] = inputValue;

                  countInts++;

              }

              catch(NumberFormatException ex)

              {

                  break;

              }

          }

          int intArray1[] = new int[countInts];

          for(int i = 0; i < countInts; i++)

              intArray1[i] = Integer.parseInt(strArray1[i]);

         

          String strArray2[] = new String[100];

          countInts = 0;

          for(int i = 0; i < strArray2.length; i++)

          {

              System.out.println("Enter integers for set B. (Press any other key to finish set). ");

              inputValue = input.next();

              try

              {

                  Integer.parseInt(inputValue);

                  strArray2[i] = inputValue;

                  countInts++;

              }

              catch(NumberFormatException ex)

              {

                  break;

              }

          }

          int intArray2[] = new int[countInts];

          for(int i = 0; i < countInts; i++)

              intArray2[i] = Integer.parseInt(strArray2[i]);

         

          String strArray3[] = new String[100];

          countInts = 0;

          for(int i = 0; i < strArray3.length; i++)

          {

              System.out.println("Enter integers for set C. (Press any other key to finish set). ");

              inputValue = input.next();

              try

              {

                  Integer.parseInt(inputValue);

                  strArray3[i] = inputValue;

                  countInts++;

              }

              catch(NumberFormatException ex)

              {

                  break;

              }

          }

          int intArray3[] = new int[countInts];

          for(int i = 0; i < countInts; i++)

              intArray3[i] = Integer.parseInt(strArray3[i]);       

         

          String strArray4[] = new String[100];

          countInts = 0;

          for(int i = 0; i < strArray4.length; i++)

          {

              System.out.println("Enter integers for set D. (Press any other key to finish set). ");

              inputValue = input.next();

              try

              {

                  Integer.parseInt(inputValue);

                  strArray4[i] = inputValue;

                  countInts++;

              }

              catch(NumberFormatException ex)

              {

                  break;

              }

          }

          int intArray4[] = new int[countInts];

          for(int i = 0; i < countInts; i++)

              intArray4[i] = Integer.parseInt(strArray4[i]);  

  }

   

   

  And here is IntergerSet class:

  import java.util.Scanner;

  public class IntergerSet

  {

              private static final int SIZE = 101;

              private boolean[] arraySet = new boolean[SIZE];

              private boolean validEntry(int k)

              {

                          return k>=0 && k<=SIZE;

              }

              // No-arguments.

              public IntergerSet()

              {

                          for(int i=0; i<SIZE; i++)

                                      arraySet[i] = false;

              } 

              //overloading

              public IntergerSet(int arraySet[])

              {

              //obtain the values of the set that the user enter.

              }

   

               public IntergerSet union(IntergerSet other)

              {

                          IntergerSet res = new IntergerSet();

                         

                          for(int i=0; i<SIZE; i++) 

                          res.arraySet[i] = this.arraySet[i]||other.arraySet[i]; 

              return res;

              }

    

              public IntergerSet intersection(IntergerSet other)

              {

                          IntergerSet res = new IntergerSet();

   

                          for(int i=0; i<SIZE; i++)

                          res.arraySet[i] = this.arraySet[i]&&other.arraySet[i];

              return res;

              }

  }

  Thanks

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• • Reply

  13 years ago

  by kaushalsinha

  Kaushal Sinha

  , United States

  Joined 13 years ago
  Make a set method in IntegerSet Class to receive such integer arrays from your main class... Make a global integer array variable for your IntegerSet class... from your main: IntegerSet is = new IntegerSet(); is.setDataFromUser(Array1[],Array2[],Array3[],Array[4]); from your method setDataFromUser.... public void setDataFromUser(int Array1[],int Array2[],int Array3[], int Array4[]){ //Transfer temp int array into your global int variable array... // Use it... } Here's the sample... import javax.swing.JOptionPane; public class sample{ public static void main(String args[]){ int array[] = new int[5]; for(int x=0;x; public void set(int array[]){ for(int x=0;x
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