Updating object with multiple threads without synchronization java
Another threads which is calling this method would wait until the first threads leaves this method. In this case you must use a temporary variable person and use the setter to initialize the variable and then assign the temporary variable to the final variable.
This will then make the address changes of this variable and the values visible to other threads.
Concurrency promises to perform certain task faster as these tasks can be divided into subtasks and these subtasks can be executed in parallel.
This set of excerpts from section 2.2 includes the main discussions on how the Java Memory Model impacts concurrent programming.
(A fast typist takes around 1/20 of a second per character typed, after all, which is a huge time interval for a computer.) Multitasking can be done in two ways, depending on whether the operating system interrupts programs without consulting with them first, or whether pro-grams are only interrupted when they are willing to yield control.
The former is called preemptive multitasking; the latter is called cooperative (or, simply, nonpreemptive) multitasking. Shows an animated bouncing ball running in a separate thread 9.
Concurrency is the ability to run several programs or several parts of a program in parallel.
If a time consuming task can be performed asynchronously or in parallel, this improve the throughput and the interactivity of the program.