String to char array and to string array

Question

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]);
        }
    }

}

Why do you create a String[n]? Do you want a String for each char? or String as number of spaces +1? — BobTheBuilder
– BobTheBuilder, Commented Apr 22, 2013 at 11:50

anvarik · Accepted Answer · 2013-04-22 12:25:21Z

2

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.

answered Apr 22, 2013 at 12:25

anvarik

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2 Comments

Anton Artemov Over a year ago

Not correct. Then my text will be done from same splited text

Duncan Jones Over a year ago

@AntonArtemov Well... it is correct. Perhaps you've not explained all the rules of your assignment?

JB Nizet · Accepted Answer · 2013-04-22 11:50:58Z

1

Use the String.split() method.

answered Apr 22, 2013 at 11:50

JB Nizet

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3 Comments

Duncan Jones Over a year ago

This is certainly the simple answer if the question is "How do I split a sentence into words?"

Anton Artemov Over a year ago

Quetion is how to conver char array back to words!

JB Nizet Over a year ago

Convert the char array to a String, and split the string.

Community · Accepted Answer · 2017-05-23 10:25:42Z

0

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);
}

edited May 23, 2017 at 10:25

CommunityBot

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answered Apr 22, 2013 at 11:50

Duncan Jones

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2 Comments

anshulkatta Over a year ago

true but possible when searched in dictionary , like word detector!!

Anton Artemov Over a year ago

But if space only beatwean words?

sagar · Accepted Answer · 2013-04-22 11:54:32Z

-1

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.

answered Apr 22, 2013 at 11:54

sagar

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1 Comment

Anton Artemov Over a year ago

And if spaces onle beatwean words?

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