What is thread safety? How do you achieve it?

Thread Safety refers to the way in which different threads can access the same resources without exposing erroneous behavior or producing unpredictable results.

Some different ways to achieve thread-safety are as follows.

• Stateless Implementations
• Immutable Implementations
• Thread-Local Fields
• Synchronized Collections
• Concurrent Collections
• Atomic Objects
• Synchronized Methods
• Synchronized Statements
• Other Objects as a Lock
• Volatile Fields
• Reentrant Locks
• Caveats
• Read/Write Locks