XyzWs Java FAQ
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- What is the difference between absolute, relative and canonical path of file or directory?
- What is the difference between getPath() and getAbsolutePath() and getCanonicalPath() methods?
- How can you compare NaN values?
- Can a Java application run without a main method?
- What are the difference between String, StringBuffer, and StringBuilder?
- How to setup and use system classpath (CLASSPATH)?
- How to specify multiple class search directories in the '-classpath' option of javac?
- How does 'instanceof' work with interface?
- Why can't we have a static member within an inner class?
- What is a Java package?
- How to specify JAR files in the classpath?
- How to use the toArray() method of Collection?
- What are operator precedence and the order of operand evaluation?
- Can an anonymous inner class implement an interface?
- When to use "private" constructor?
- What are the differences between Vector and ArrayList? Which one is better?
- ArrayList vs. LinkedList -- Which one is better?
- LinkedHashMap vs. HashMap?
- What are the differences among greedy, reluctant and possessive quantifiers?
- What are differences among throw, throws, and Throwable?
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