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1

How can I can convert char array to string array?

For example "Text not text" → "Text not text" as char array → "Text" "not" "text"

I understand how to "Text not text" → "Text not text", but dont know how to

"Text not text" as char array → "Text" "not" "text"

Here is code example, but it does not work

public class main {
    public static void main(String[] args) {
        StringBuffer inString = new StringBuffer("text not text");
        int n = inString.toString().replaceAll("[^a-zA-ZА-Я а-я]", "")
                .split(" ").length;
        char[] chList = inString.toString().toCharArray();
        System.out.print("Text splited by chars - ");
        for (int i = 0; i < chList.length; i++) {
            System.out.print(chList[i] + " ");
        }
        System.out.println();
        String[] temp = new String[n];
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < chList.length; j++) {
                if (chList[j] != ' ') {
                    temp[i] = new String(chList);
                }
            }
            System.out.println(temp[i]);
        }
    }

}
share|improve this question
Why do you create a String[n]? Do you want a String for each char? or String as number of spaces +1? – whoAmI Apr 22 at 11:50
thats possible when you will have to detect the words...! – anshulkatta Apr 22 at 11:50
n - number of words. – Anton Artemov Apr 22 at 11:53

4 Answers

up vote 0 down vote accepted

The short sweet answer is from anvarik. However, if you need to show some working (maybe this is homework?), the following code will construct the list manually:

char[] chars = "text not text".toCharArray();

List<String> results = new ArrayList<String>();
StringBuilder builder = new StringBuilder();

for (int i = 0; i < chars.length; i++) {
  char c = chars[i];

  builder.append(c);

  if (c == ' ' || i == chars.length - 1) {
    results.add(builder.toString().trim());
    builder = new StringBuilder();
  }
}

for (String s : results) {
  System.out.println(s);
}
share|improve this answer
true but possible when searched in dictionary , like word detector!! – anshulkatta Apr 22 at 11:52
But if space only beatwean words? – Anton Artemov Apr 22 at 12:20
up vote 1 down vote

Use the String.split() method.

share|improve this answer
This is certainly the simple answer if the question is "How do I split a sentence into words?" – Duncan Jones Apr 22 at 12:03
Quetion is how to conver char array back to words! – Anton Artemov Apr 22 at 12:08
Convert the char array to a String, and split the string. – JB Nizet Apr 22 at 12:43
up vote -1 down vote

I think if you replace all the white spaces when you are converting "Text not text" with a $ symbol so the resulting string becomes 'T e x t$ n o t$ t e x t'

String ex= ex.replaceAll("\s","$");

and while converting it back you can replace the $ with white spaces again.

Other than this I can't seem to think any other way of how you can maintain the meanings of the words while splitting.

share|improve this answer
And if spaces onle beatwean words? – Anton Artemov Apr 22 at 12:23
up vote 2 down vote

So you have a char array as following am I right:

char[] chars = new char[] {'T', 'e', 'x', 't', ' ', 'n', 'o', 't', ' ', 't', 'e', 'x', 't'};

Then what you want to get is separate words Text, not and text ??

if so, then do the following:

String newString = new String(chars);
String[] strArray = newString.split(" ");

now strArray is your array.

share|improve this answer
Not correct. Then my text will be done from same splited text – Anton Artemov Apr 22 at 12:30
@AntonArtemov Well... it is correct. Perhaps you've not explained all the rules of your assignment? – Duncan Jones Apr 22 at 12:30

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