String Characters : Extracting String Characters « Data Type « Java Tutorial

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Java Tutorial » Data Type » Extracting String Characters

2. 25. 8. String Characters


public class StringCharacters {

  public static void main(String[] args) {

    String text = "To be or not to be?";



    int spaces = 0,

    vowels = 0, 

    letters = 0;



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

      char ch = Character.toLowerCase(text.charAt(i));

      if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u')

        ++vowels;

      if (Character.isLetter(ch))

        ++letters;

      if (Character.isWhitespace(ch))

        ++spaces;

    }

  }

}

2. 25. Extracting String Characters
	2. 25. 1.	Searching Strings for Characters
	2. 25. 2.	Finding the last occurrence of 'a' in the String variable text: the method lastIndexOf()
	2. 25. 3.	To search forwards from a given position: startIndex
	2. 25. 4.	Searching for Substrings
	2. 25. 5.	Last index of
	2. 25. 6.	Up to the end of the string
	2. 25. 7.	Beyond the last character of the substring
	2. 25. 8.	String Characters

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