#concur

Once an object escapes, you have to assume that another class or thread may, maliciously or carelessly, misuse it. This is a compelling reason to use encapsulation: it makes it practical to analyze programs for correctness and harder to violate design constraints accidentally. ↗

— Brian Goetz

#java #programming #design

Compound actions on shared state, such as incrementing a hit counter (read-modify-write) or lazy initialization (check-then-act), must be made atomic to avoid race conditions. Holding a lock for the entire duration of a compound action can make that compound action atomic. However, just wrapping the compound action with a synchronized block is not sufficient; if synchronization is used to coordinate access to a variable, it is needed everywhere that variable is accessed. Further, when using locks to coordinate access to a variable, the same lock must be used wherever that variable is accessed. ↗

— Brian Goetz

#java #programming #synchronicity

Accessing shared, mutable data requires using synchronization; one way to avoid this requirement is to not share. If data is only accessed from a single thread, no synchronization is needed. This technique, thread confinement, is one of the simplest ways to achieve thread safety. When an object is confined to a thread, such usage is automatically thread-safe even if the confined object itself is not. ↗

— Brian Goetz

#java #programming #synchronicity

For the creation of a masterwork of literature two powers must concur, the power of the man and the power of the moment, and the man is not enough without the moment. ↗

— Matthew Arnold

#creation #enough #literature #man #moment

Several experts on the Middle East concur that the Middle East cannot be democratized. ↗

— Recep Tayyip Erdogan

#concur #east #experts #middle #middle east

To be able to hold all four majors - the Masters, U.S. Open, British Open, PGA - all concurrently I think is the Grand Slam. But a lot of people have a different opinions on that. People think you have to win it in the same calendar year. ↗

— Tiger Woods

#british #british open #calendar #concurrently #different

All handling by IPCC of the Sea Level questions have been done in a way that cannot be accepted and that certainly not concur with modern knowledge of the mode and mechanism of sea level changes. ↗

— Nils-Axel Morner

#been #cannot #certainly #changes #concur

That a strong stimulus to such an afferent nerve, exciting most or all of its fibres, should in regard to a given muscle develop inhibition and excitation concurrently is not surprising. ↗

— Charles Scott Sherrington

#develop #exciting #given #inhibition #most