2 Replies Latest reply: Jul 15, 2010 2:52 PM by 747719 RSS

    Truth Table Simulation Algorithm

    747719
      Hi All

      I wish to write a method that takes a number and prints out the appropriate truth table values
      i.e. No = 2
      
      00
      01
      10
      11
      or No = 3
      
      000
      001
      010
      011
      100
      101
      110
      111
      public class MyTruthTable
      {
      
               public static void main (String args [])
                  { 
                       int numb = 10;
      
                    for(i=0; i<numb; i++)
                      {
                        int currentNumb = i;
                        
                               for(j=0; j<numb; j++)
                                   {
                                        if(currentNumb.equals(anotherNumb)){}
                                        else
                                          {
                                             //Mind Blank
                                            System.out.println("   ");
                                          }
      
      
                      }
      
      }
      }
      Thanks
        • 1. Re: Truth Table Simulation Algorithm
          800282
          Here you go:
          public class Test {
               
            public static void printTruthTable(int n) {
              for(int i = 0; i < Math.pow(2, n); i++) {
                System.out.println(String.format("%"+n+"s", Integer.toBinaryString(i)).replace(' ', '0'));
              }
            }
               
            public static void main(String[] args) {
              printTruthTable(3);
            }
          }
          
          /*
              000
              001
              010
              011
              100
              101
              110
              111
          */
          • 2. Re: Truth Table Simulation Algorithm
            747719
            Hi there, thanks for your reply

            I have a slightly different but similiar question.

            I want to take in argument; an ArrayList of type String, and print out a kind of truth table in that order
            i.e.
            
            ArrayList <String> = {one, two, three}
            
            System prints out:
                  one, -two, -three
                  one,  two, -three
                  one,  two,  three
            
                  two,  -one, -three
                  two,  one,  -three
                  two,  one,   three
            
                  three, -one,  -two
                  three, one,   -two
                  three, one,   two   
            Hope that made sense