CS 101 - 10/13/11

More on If Statements


Use of an if statement for an error check

   //  check for the error
   if ( <error condition> )
      {
        //  display an error message
        SimpleOutput.showError ("ErrorMessage");

        // quit the program
        System.exit(1);
      }

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How do we combine 2 pictures??????

    Each pixel has 3 color values

   For the final picture:
     the red value for each pixel comes from
         data from picture 1

     the green and blue valuess for each pixel
         comes from data from picture 2

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More on If statements


If - elseIf form

    if ( <cond1> )
       {
          <state1> ;
       }
    else if ( <cond2> )
       {
          <state2> ;
       }
    else if ( <cond3> )
       {
          <state3> ;
       }
    else 
       {
          <state4> ;
       }