NID HELP FOR JAVA

• lional88

  24 Jul 06, 18:58

  eh i done a simple prog for java for a "calculator" but not sure which part i made mistake, nid help =(
  
  Source code:
  
  import javax.swing.JOptionPane;
  public class SuperCalculator
  {
  
  public static void main(String[] args)
  {
  
  String InputString = JOptionPane.showInputDialog(null,
  "What is your command my leader ?\n"
  +"+ - Add two numbers for me\n"
  +"- Minus two numbers for me (num1 – num2)\n"
  +"/ - Divide two numbers for me (num1 / num2)\n"
  +"* - Multiply two numbers for me\n"
  +"D - Display the 5 previous commands and answers\n"
  +"P - Play the super duper text game\n"
  +"Q - Quit and exit the program.\n",
  "Super Calculator Software",JOptionPane.QUESTION_MESSAGE);
  
  if (InputString.charAt(0) == '+') {
  
  String dataString1 = JOptionPane.showInputDialog(null,
  "Enter an Integer value,\n"
  +"The program exits if the input is 0","Super Calculator Software", JOptionPane.QUESTION_MESSAGE);
  double data1 = Double.parseDouble(dataString1);
  
  String dataString2 = JOptionPane.showInputDialog(null,
  "Enter an Integer value,\n"
  +"The program exits if the input is 0","Super Calculator Software", JOptionPane.QUESTION_MESSAGE);
  double data2 = Double.parseDouble(dataString2);
  double sum =data1 +data2;
  JOptionPane.showMessageDialog(null,"The sum is "+sum ,"Super Calculator Software", JOptionPane.INFORMATION_MESSAGE);
  
  else if (InputString.charAt(0) == '-') {
  
  String dataString1 = JOptionPane.showInputDialog(null,
  "Enter an Integer value,\n"
  +"The program exits if the input is 0","Super Calculator Software", JOptionPane.QUESTION_MESSAGE);
  double data1 = Double.parseDouble(dataString1);
  
  String dataString2 = JOptionPane.showInputDialog(null,
  "Enter an Integer value,\n"
  +"The program exits if the input is 0","Super Calculator Software", JOptionPane.QUESTION_MESSAGE);
  double data2 = Double.parseDouble(dataString2);
  double sum =data1 -data2;
  JOptionPane.showMessageDialog(null,"The sum is "+sum ,"Super Calculator Software", JOptionPane.INFORMATION_MESSAGE);
  
  }
  }
  }
  }
• hellomotosxq

  24 Jul 06, 19:04

  need help
  
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• Eternal-fire

  24 Jul 06, 19:37

  Originally posted by lional88:

  eh i done a simple prog for java for a "calculator" but not sure which part i made mistake, nid help =(
  
  Source code:
  
  import javax.swing.JOptionPane;
  public class SuperCalculator
  {
  
  public static void main(String[] args)
  {
  
  String InputString = JOptionPane.showInputDialog(null,
  "What is your command my leader ?\n"
  +"+ - Add two numbers for me\n"
  +"- Minus two numbers for me (num1 – num2)\n"
  +"/ - Divide two numbers for me (num1 / num2)\n"
  +"* - Multiply two numbers for me\n"
  +"D - Display the 5 previous commands and answers\n"
  +"P - Play the super duper text game\n"
  +"Q - Quit and exit the program.\n",
  "Super Calculator Software",JOptionPane.QUESTION_MESSAGE);
  
  if (InputString.charAt(0) == '+') {
  
  String dataString1 = JOptionPane.showInputDialog(null,
  "Enter an Integer value,\n"
  +"The program exits if the input is 0","Super Calculator Software", JOptionPane.QUESTION_MESSAGE);
  double data1 = Double.parseDouble(dataString1);
  
  String dataString2 = JOptionPane.showInputDialog(null,
  "Enter an Integer value,\n"
  +"The program exits if the input is 0","Super Calculator Software", JOptionPane.QUESTION_MESSAGE);
  double data2 = Double.parseDouble(dataString2);
  double sum =data1 +data2;
  JOptionPane.showMessageDialog(null,"The sum is "+sum ,"Super Calculator Software", JOptionPane.INFORMATION_MESSAGE);
  
  else if (InputString.charAt(0) == '-') {
  
  String dataString1 = JOptionPane.showInputDialog(null,
  "Enter an Integer value,\n"
  +"The program exits if the input is 0","Super Calculator Software", JOptionPane.QUESTION_MESSAGE);
  double data1 = Double.parseDouble(dataString1);
  
  String dataString2 = JOptionPane.showInputDialog(null,
  "Enter an Integer value,\n"
  +"The program exits if the input is 0","Super Calculator Software", JOptionPane.QUESTION_MESSAGE);
  double data2 = Double.parseDouble(dataString2);
  double sum =data1 -data2;
  JOptionPane.showMessageDialog(null,"The sum is "+sum ,"Super Calculator Software", JOptionPane.INFORMATION_MESSAGE);
  
  }
  }
  }
  }

  You just reminded me why I wanna quit my IT course last year.
• Ayukat

  24 Jul 06, 21:24

  At least post the error lah.
• casshern

  24 Jul 06, 22:46

  and i tot this was for the Indonesians...
• sohguanh

  25 Jul 06, 16:30

  Originally posted by lional88:
  eh i done a simple prog for java for a "calculator" but not sure which part i made mistake, nid help =(
  
  Source code:
  
  import javax.swing.JOptionPane;
  public class SuperCalculator
  {
  
  public static void main(String[] args)
  {
  
  String InputString = JOptionPane.showInputDialog(null,
  "What is your command my leader ?\n"
  +"+ - Add two numbers for me\n"
  +"- Minus two numbers for me (num1 – num2)\n"
  +"/ - Divide two numbers for me (num1 / num2)\n"
  +"* - Multiply two numbers for me\n"
  +"D - Display the 5 previous commands and answers\n"
  +"P - Play the super duper text game\n"
  +"Q - Quit and exit the program.\n",
  "Super Calculator Software",JOptionPane.QUESTION_MESSAGE);
  
  if (InputString.charAt(0) == '+') {
  
  String dataString1 = JOptionPane.showInputDialog(null,
  "Enter an Integer value,\n"
  +"The program exits if the input is 0","Super Calculator Software", JOptionPane.QUESTION_MESSAGE);
  double data1 = Double.parseDouble(dataString1);
  
  String dataString2 = JOptionPane.showInputDialog(null,
  "Enter an Integer value,\n"
  +"The program exits if the input is 0","Super Calculator Software", JOptionPane.QUESTION_MESSAGE);
  double data2 = Double.parseDouble(dataString2);
  double sum =data1 +data2;
  JOptionPane.showMessageDialog(null,"The sum is "+sum ,"Super Calculator Software", JOptionPane.INFORMATION_MESSAGE);
  } <- add this brace
  
  else if (InputString.charAt(0) == '-') {
  
  String dataString1 = JOptionPane.showInputDialog(null,
  "Enter an Integer value,\n"
  +"The program exits if the input is 0","Super Calculator Software", JOptionPane.QUESTION_MESSAGE);
  double data1 = Double.parseDouble(dataString1);
  
  String dataString2 = JOptionPane.showInputDialog(null,
  "Enter an Integer value,\n"
  +"The program exits if the input is 0","Super Calculator Software", JOptionPane.QUESTION_MESSAGE);
  double data2 = Double.parseDouble(dataString2);
  double sum =data1 -data2;
  JOptionPane.showMessageDialog(null,"The sum is "+sum ,"Super Calculator Software", JOptionPane.INFORMATION_MESSAGE);
  
  }
  } <- remove this brace
  }
  }

• used

  25 Jul 06, 17:29

  ceh! i tot aid wanted in indonesia
• lional88

  25 Jul 06, 20:57

  Originally posted by sohguanh:

  thx!
• ndmmxiaomayi

  25 Jul 06, 22:55

  Go Google and search for a Notepad2.
  
  This notepad is better than the Windows notepad, it tells you whether you have one less or more extra braces.
  
  If the number of braces are correct, the code would like this:
  
  { codes here
  }
  
  If you put in one extra brace, the code would look like this in Notepad2:
  
  { codes here
  }
  }
  
  If there are not enough braces, a combination of the above codes would show.