Java Language
- Getting started with Java Language
- Top 10 Java Errors with Solutions
- Awesome Book
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- 2D Graphics in Java
- Alternative Collections
- Annotations
- Apache Commons Lang
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- Class - Java Reflection
- Classes and Objects
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- Date Class
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- log4j / log4j2
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- Strings
- sun.misc.Unsafe
- super keyword
- The Classpath
- The Java Command - 'java' and 'javaw'
- The java.util.Objects Class
- ThreadLocal
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- Type Conversion
- Unit Testing
- Using Other Scripting Languages in Java
- Using the static keyword
- Using ThreadPoolExecutor in MultiThreaded applications.
- Varargs (Variable Argument)
- Visibility (controlling access to members of a class)
- WeakHashMap
- XJC
- XML Parsing using the JAXP APIs
- XML XPath Evaluation
- XOM - XML Object Model
Java Language Localization and Internationalization String Comparison
Example
Compare two Strings ignoring case:
"School".equalsIgnoreCase("school"); // true
Don't use
text1.toLowerCase().equals(text2.toLowerCase());
Languages have different rules for converting upper and lower case. A 'I' would be converted to 'i' in English. But in Turkish a 'I' becomes a 'ı'. If you have to use toLowerCase() use the overload which expects a Locale: String.toLowerCase(Locale).
Comparing two Strings ignoring minor differences:
Collator collator = Collator.getInstance(Locale.GERMAN);
collator.setStrength(Collator.PRIMARY);
collator.equals("Gärten", "gaerten"); // returns true
Sort Strings respecting natural language order, ignoring case (use collation key to:
String[] texts = new String[] {"Birne", "äther", "Apfel"};
Collator collator = Collator.getInstance(Locale.GERMAN);
collator.setStrength(Collator.SECONDARY); // ignore case
Arrays.sort(texts, collator::compare); // will return {"Apfel", "äther", "Birne"}
