Java Language
- Getting started with Java Language
- Top 10 Java Errors with Solutions
- Awesome Book
- Awesome Community
- Awesome Course
- Awesome Tutorial
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- 2D Graphics in Java
- Alternative Collections
- Annotations
- Apache Commons Lang
- AppDynamics and TIBCO BusinessWorks Instrumentation for Easy Integration
- Applets
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- Asserting
- Atomic Types
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- Autoboxing
- Basic Control Structures
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- C++ Comparison
- Calendar and its Subclasses
- Character encoding
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- Class - Java Reflection
- Classes and Objects
- Classloaders
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- Collections
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- Common Java Pitfalls
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- Concurrent Collections
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- Console I/O
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- Creating Images Programmatically
- Currency and Money
- Date Class
- Dates and Time (java.time.*)
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- Documenting Java Code
- Dynamic Method Dispatch
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- Enum Map
- Enum starting with number
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- EnumSet class
- Exceptions and exception handling
- Executor, ExecutorService and Thread pools
- Expressions
- File I/O
- FileUpload to AWS
- Fluent Interface
- FTP (File Transfer Protocol)
- Functional Interfaces
- Generating Java Code
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- Immutable Class
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- Inheritance
- InputStreams and OutputStreams
- Installing Java (Standard Edition)
- Interfaces
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- Java Agents
- Java Compiler - 'javac'
- Java deployment
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- Java Memory Model
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- Java Native Interface
- Java Performance Tuning
- Java Pitfalls - Exception usage
- Java Pitfalls - Language syntax
- Java Pitfalls - Nulls and NullPointerException
- Java Pitfalls - Performance Issues
- Java Pitfalls - Threads and Concurrency
- Java plugin system implementations
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- JavaBean
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- Local Inner Class
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- LocalTime
- log4j / log4j2
- Logging (java.util.logging)
- Maps
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- Nashorn JavaScript engine
- Nested and Inner Classes
- Networking
- New File I/O
- Creating paths
- Manipulating paths
- Reading files
- Retrieving information about a path
- Retrieving information using the filesystem
- Writing files
- NIO - Networking
- Non-Access Modifiers
- NumberFormat
- Object Class Methods and Constructor
- Object Cloning
- Object References
- Operators
- Optional
- Oracle Official Code Standard
- Packages
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- Properties Class
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- Reflection API
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- RSA Encryption
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- Security & Cryptography
- Security & Cryptography
- SecurityManager
- Serialization
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- Sets
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- Sockets
- SortedMap
- Splitting a string into fixed length parts
- Stack-Walking API
- Streams
- String Tokenizer
- StringBuffer
- StringBuilder
- Strings
- sun.misc.Unsafe
- super keyword
- The Classpath
- The Java Command - 'java' and 'javaw'
- The java.util.Objects Class
- ThreadLocal
- TreeMap and TreeSet
- 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 New File I/O Manipulating paths
Example
Joining Two Paths
Paths can be joined using the resolve() method. The path passed has to be a partial path, which is a path that doesn't include the root element.
Path p5 = Paths.get("/home/");
Path p6 = Paths.get("arthur/files");
Path joined = p5.resolve(p6);
Path otherJoined = p5.resolve("ford/files");
joined.toString() == "/home/arthur/files"
otherJoined.toString() == "/home/ford/files"
Normalizing a path
Paths may contain the elements . (which points to the directory you're currently in) and ..(which points to the parent directory).
When used in a path, . can be removed at any time without changing the path's destination, and .. can be removed together with the preceding element.
With the Paths API, this is done using the .normalize() method:
Path p7 = Paths.get("/home/./arthur/../ford/files");
Path p8 = Paths.get("C:\\Users\\.\\..\\Program Files");
p7.normalize().toString() == "/home/ford/files"
p8.normalize().toString() == "C:\\Program Files"
