Is there any one who can help me solve this?

Question

Hi.
I'm taking AP Computer Scinece AB in high school now.
I've been assigned many programs so far. But.. I can't figure them out.
There are two programs I need your help. So..Please!!!!!! Help Me!!!!
Please!! Enjoy helping me!
<Program #1>
It's divided into three small programs and I've figured out one of them, which was the easiest one..You will be able to see the programs if you click on the link below.
(page1)
http://iboard3.superboard.dreamwiz.com/board.cgi?db=90_darkoo&idx=2&page=1
(page2)
http://iboard3.superboard.dreamwiz.com/board.cgi?db=90_darkoo&idx=3&page=1
<Program #2>
http://iboard3.superboard.dreamwiz.com/board.cgi?db=90_darkoo&idx=4&page=1
The way I figured out first part of program #1 was like this :
public class ThreeX1
public static void main ( string[] org )
system.out.println ();
int startValue = 21;
int count = 0;
while (startValue >1)
count ++;
if (startValue % 2 == 0)
startValue = startValue/2;
else
startValue = 3*startValue +1;
system.out.println ( count );
===================================================
From there, for the second and third programs of program #1, I tried to figure it out by using 'for' statement instead of 'while', but I couldn't.
So..Please help me out.. Thank you
or you can e-mail me too. It would be great too.
add. : [email protected]

Answer 1

I probably shouldn't be doing your homework but here it is:
public class ThreeX2{
     public static void main ( String[] org ){
          int startValue = 2;
          while(startValue<100){
               System.out.print(startValue);
               System.out.print("\t");
               System.out.println(timesToGetToOne(startValue));
               startValue++;
     private static int timesToGetToOne(int intForValue){
          int count = 0;
          while (intForValue!=1){
               count ++;
               if (intForValue % 2 == 0)
                    intForValue = intForValue/2;
               else
                    intForValue = 3*intForValue +1;
          return count;
public class ThreeX3{
     public static void main ( String[] input ){
          int maximumTries = 1000000;
          int numberOfitterations = 10;
          try{
               numberOfitterations = new Integer(input[0]).intValue();
          }catch(Exception e){
          try{
               maximumTries = new Integer(input[1]).intValue();
          }catch(Exception e){
          int startValue = 2;
          while(startValue<maximumTries){
               if(timesToGetToOne(startValue)==numberOfitterations){
                    System.out.print("When startvalue is: ");
                    System.out.print(startValue);
                    System.out.print(" it will take exatly ");
                    System.out.print(timesToGetToOne(startValue));
                    System.out.println(" iterations to get to 1.");
                    // remove the next line and it will show all values that
                    // takes numberOfitterations amount of times to get to 1
                    break;
               startValue++;
     private static int timesToGetToOne(int intForValue){
          int count = 0;
          while (intForValue!=1){
               count ++;
               if (intForValue % 2 == 0)
                    intForValue = intForValue/2;
               else
                    intForValue = 3*intForValue +1;
          return count;
}Problem 3 is diffucult, since the input is one date I assume that the current reading is for this date. I don't
know the date of the previous reading so I cannot calculate if the consumption is between June through
Ocober.
your Main method shoud have 4 inputs date accountNumber currentReading previousReading
Your main function would look like this:
     public static void main ( String[] input ){
          Calendar date=null;
          int accountNumber = 0;
          int currentReading = 0;
          try{
               String[] s = input[0].split("/");
               date = Calendar.getInstance();
               date.set(Calendar.YEAR,new Integer(s[2]).intValue());
               date.set(Calendar.MONTH,new Integer(s[0]).intValue()-1);
               date.set(Calendar.DAY_OF_MONTH,new Integer(s[1]).intValue());
          }catch(Exception e){
               System.out.println("cannot get date, please start this program the following way: ");
               System.out.println("programName date(format mm/dd/yyyy) accountNumber currentReading previousReading");
          try{
               accountNumber = new Integer(input[1]).intValue();
          }catch(Exception e){
               System.out.println("cannot get account number, please start this program the following way: ");
               System.out.println("programName date(format mm/dd/yyyy) accountNumber currentReading previousReading");
          try{
               currentReading = new Integer(input[2]).intValue();
          }catch(Exception e){
               System.out.println("cannot get current reading, please start this program the following way: ");
               System.out.println("programName date(format mm/dd/yyyy) accountNumber currentReading previousReading");
          try{
               previousReading = new Integer(input[3]).intValue();
          }catch(Exception e){
               System.out.println("cannot get previous reading, please start this program the following way: ");
               System.out.println("programName date(format mm/dd/yyyy) accountNumber currentReading previousReading");
// check the date between june and oct:
// (5>date.get(Calendar.MONTH))&&(9<date.get(Calendar.MONTH))