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Java Java Data Structures - Retired Organizing Data Splitting Strings

Kshatriiya .
Kshatriiya .
1,464 Points
Posted by Kshatriiya .
Kshatriiya .
1,464 Points

Hi please explain for (String word: treet.getWord()) or similar for (Char letter: example.toCharArray()) etc

Hello,

I understand what they do roughly but having a difficult time digesting why it is formatted that way. Does for (Char letter: example.toCharArray()) changed the String stored in example to character array and then store that in Char letter?

Say if String example = "hello"; does Char letter than become ['h', 'e', 'l', 'l', 'o'] ?

So when you pair it with for command that does mean for every character in Char letter?

if that is the case why can't we do something like

Char[] letter = example.toCharArray();
for (letter) {
}

Thanks in advance.

1 Answer

jcorum
jcorum
71,830 Points
jcorum
jcorum
71,830 Points

Yes. It creates an array of chars, as you say: ['h', 'e', 'l', 'l', 'o'] .

The problem is that there were syntax errors in your code.

      //create String
      String example = "hello";

      //convert to char array
      char[] letter = example.toCharArray();  //char must be lower case

      //loop through char array
      for (char l : letter) {  //loop must have a typed variable
         System.out.print(l + " ");
      }

      //output
      //h e l l o