weel of something

[A.Al-Ansari]

hi again ...
i was reading the weel of future or sometihng code nad i came to try to modfy it as i want to make a random choics of the string array and pick one of them randomly .. then calculate its chars... but as laways i'm stucked..// i wasn to modify it after this problem ..to accept chars from user and then chech if its in the string or not.. the code it here/..

 public class Weel {
  public static void main(String[] args) {
  String[] phr = {"You are not alone" ,
                  "We are the world" ,
                  "smile"};
                  String pick;
                  int[] letterCount = new int[26];
                 // for(int i= 0; i<phr.length; i++){
                  //pick= phr[i];
                 // }
                 pick = phr[1];
                  char[] letter = pick.toCharArray();
                  for(int count = 0; count < letter.length; count++){
                  char current = letter[count];
                  if((current >= 'A') && (current <= 'Z')){
                  letterCount[current - 'A']++;
                  }
                }
                  for(char count = 'A'; count1<='Z'; count++){
                  System.out.print(count + ": " +
                  letterCount[count - 'A'] +
                    "\t");
                    }
                    System.out.println();
                    }
                    }

 

i'm stuvked didnt knew how to use random with string or how to cast it..//
plz help..with alil explnation helping me to modfy it to..
Your Best Ever...smile

[chi Lin]

Math.random() give you a random number between 0.0(included)
& 1.0 (excluded). If you want to get a number between 0 and 3
you could use Math.random()*3 and cast it to int.
When you do the letter count, you are using UPcase letters, should use toUpperCase() from String to change pick to upper case before comparsion.
HTH

[A.Al-Ansari]

:roll: i tryed to use the Math.random // but i didnt knew how can i pick one string with in the array and assign it to the array//
for(i=0; i<phr.length; i++){
pick = math.random * 3;
i dont know how to assign one string from the phr to a variable in for loop so then i can use it under rndomly!! just 1 string.. will be picked from the list of string array(phr)... its some kind of verry simple game..// any other help plz!
Your Best Ever...smile

[chi Lin]

Try something to get a string randomly selected from Phr
and assign to pick.

int numberSelected = (int)((Math.random())*3); // 3 could change to phr.length to make it more flexible.
pick = phr[numberSelected];

HTH
[ November 16, 2003: Message edited by: chi Lin ]

[Chris Harris]

Hi,
If I understand your question try :

 
 pick = phr[(int) (Math.random ()* 3)];
 

Note you may want to replace 3 with phr.length.
If I understand your code correctly you do not need the loop:

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

As you only ever want to pick one String for phr.length there is no need to loop.
Hope that helps.
Chris.
[ November 16, 2003: Message edited by: Chris Harris ]
[ November 16, 2003: Message edited by: Chris Harris ]

[A.Al-Ansari]

oh thanks...
so by this asignment..it will atumatecly choose one from the phr// so i'll try it now thank's alot both of you

[A.Al-Ansari]

i used the line but its just picking the first litter in the string not the first string why!!
Your Best Ever...smile

[chi Lin]

pleaae post your current code & we go from there

[A.Al-Ansari]

sorry here it is

 public class Weel {
  public static void main(String[] args) {
  String[] phr = {"You are not alone" ,
                  "We are the world" ,
                  "smile"};
                  int[] letterCount = new int[26];
             String pick = phr[(int) (Math.random ()* phr.length)];
                  char[] letter = pick.toCharArray();
                  for(int count = 0; count < letter.length; count++){
                  char current = letter[count];
                  if((current >= 'A') && (current <= 'Z')){
                  letterCount[current - 'A']++;
                  }
                }
                  for(char count = 'A'; count<='Z'; count++){
                  System.out.print(count + ": " +
                  letterCount[count - 'A'] +
                    "\t");
                    }
                    System.out.println();
                    }
                    }
 

Your Best Ever...smile

[chi Lin]

Hi,
In if clause, you are comparing only UpCase letter/character,
so only first one letter on each subString was prcessed,
all following lower ones are skipped.
if((current >= 'A') && (current <= 'Z')) {
one possible fix is convert pick to upcase before the toCharArray()
call.
HTH

[A.Al-Ansari]

oh god it was really hidden and by the way i gues o i can include (and) in the for look to include lower case !! if its possible i'll try bth and see if it works thanks laot.
Your Best Ever...smile