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
- Audio
- Autoboxing
- Basic Control Structures
- Benchmarks
- BigDecimal
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- Bit Manipulation
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- 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
- Comparable and Comparator
- CompletableFuture
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- Creating Images Programmatically
- Currency and Money
- Date Class
- Dates and Time (java.time.*)
- Calculate Difference between 2 LocalDates
- Date and time
- Date Time Formatting
- Instant
- Operations on dates and times
- Simple Date Manipulations
- Usage of various classes of Date Time API
- Default Methods
- Dequeue Interface
- Disassembling and Decompiling
- Documenting Java Code
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- InputStreams and OutputStreams
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- LocalTime
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- Security & Cryptography
- SecurityManager
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- Splitting a string into fixed length parts
- Stack-Walking API
- Streams
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- 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 Dates and Time (java.time.*) Simple Date Manipulations
Example
Get the current date.
LocalDate.now()
Get yesterday's date.
LocalDate y = LocalDate.now().minusDays(1);
Get tomorrow's date
LocalDate t = LocalDate.now().plusDays(1);
Get a specific date.
LocalDate t = LocalDate.of(1974, 6, 2, 8, 30, 0, 0);
In addition to the plus and minus methods, there are a set of "with" methods that can be used to set a particular field on a LocalDate instance.
LocalDate.now().withMonth(6);
The example above returns a new instance with the month set to June (this differs from java.util.Date where setMonth was indexed a 0 making June 5).
Because LocalDate manipulations return immutable LocalDate instances, these methods may also be chained together.
LocalDate ld = LocalDate.now().plusDays(1).plusYears(1);
This would give us tomorrow's date one year from now.
