Using the Collection-Based for Loop with a String: Counting all vowels in a string : String vs Char Array « Data Type « Java Tutorial

1.	Language
2.	Data Type
3.	Operators
4.	Statement Control
5.	Class Definition
6.	Development
7.	Reflection
8.	Regular Expressions
9.	Collections
10.	Thread
11.	File
12.	Generics
13.	I18N
14.	Swing
15.	Swing Event
16.	2D Graphics
17.	SWT
18.	SWT 2D Graphics
19.	Network
20.	Database
21.	Hibernate
22.	JPA
23.	JSP
24.	JSTL
25.	Servlet
26.	Web Services SOA
27.	EJB3
28.	Spring
29.	PDF
30.	Email
31.	J2ME
32.	J2EE Application
33.	XML
34.	Design Pattern
35.	Log
36.	Security
37.	Apache Common
38.	Ant
39.	JUnit

Java Source Code / Java Documentation

Java Open Source

Jar File Download

Photoshop Tutorials

Flash Tutorials

3ds-Max Tutorials

Illustrator Tutorials

C# / CSharp Tutorial

C# / CSharp Open Source

ASP.NET Tutorial

JavaScript DHTML

JavaScript Tutorial

JavaScript Reference

HTML CSS Reference

Python Tutorial

Python Open Source

SQL Server / T-SQL

SQL Server / T-SQL Tutorial

Oracle PL / SQL

Oracle PL/SQL Tutorial

VB.Net Tutorial

Flash / Flex / ActionScript

VBA / Excel / Access / Word

Microsoft Office PowerPoint 2007 Tutorial

Microsoft Office Excel 2007 Tutorial

Microsoft Office Word 2007 Tutorial

Java Tutorial » Data Type » String vs Char Array

2. 28. 10. Using the Collection-Based for Loop with a String: Counting all vowels in a string


public class MainClass {



  public static void main(String[] arg) {

    String phrase = "The quick brown fox jumped over the lazy dog.";

    int vowels = 0;

    for(char ch : phrase.toCharArray()) {

      ch = Character.toLowerCase(ch);

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

        ++vowels;

      }

    }

    System.out.println("The phrase contains " + vowels + " vowels.");      

  }



}

The phrase contains 12 vowels.

2. 28. String vs Char Array
	2. 28. 1.	Demonstrates the charAt and getChars
	2. 28. 2.	Converting Char array to String
	2. 28. 3.	Creating Character Arrays From String Objects
	2. 28. 4.	Copy characters from string into char Array
	2. 28. 5.	Creating String Objects From Character Arrays
	2. 28. 6.	new String(textArray, 9, 3): Creating String Objects From certain part of a character Array
	2. 28. 7.	Creating String Objects From Character Arrays using String.copyValueOf()
	2. 28. 8.	Creating a string from a subset of the array elements
	2. 28. 9.	Extracting a substring as an array of characters using the method getChars()
	2. 28. 10.	Using the Collection-Based for Loop with a String: Counting all vowels in a string
	2. 28. 11.	Construct one String from another.
	2. 28. 12.	demonstrates getChars( ):
	2. 28. 13.	implements CharSequence
	2. 28. 14.	Removes spaces (char <= 32) from end of this String with escape, handling null by returning null
	2. 28. 15.	Removes spaces (char <= 32) from end of this String, handling null by returning null
	2. 28. 16.	Swaps the case of a String changing upper and title case to lower case, and lower case to upper case.
	2. 28. 17.	Deletes all whitespaces from a String as defined by Character.isWhitespace(char).
	2. 28. 18.	Checks whether the String contains only digit characters.
	2. 28. 19.	Checks that the String does not contain certain characters.

www.java2java.com | Contact Us

Copyright 2009 - 12 Demo Source and Support. All rights reserved.

All other trademarks are property of their respective owners.