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A class diagram exemplifying the singleton pattern.. In object-oriented programming, the singleton pattern is a software design pattern that restricts the instantiation of a class to a singular instance.
The Last Effort and Fall of Tippoo Sultaun is an 1800 history painting by the British artist Henry Singleton. [1] It depicts the death of the Tipu Sultan, ruler of Mysore, on 4 May 1799 while fighting British troops during the Siege of Seringapatam. [2]
Benjamin "Pap" Singleton (1809 – February 17, 1900) was an American activist and businessman best known for his role in establishing African American settlements in Kansas. A former slave from Tennessee who escaped to freedom in Ontario, Canada in 1846, he soon returned to the United States, settling for a period in Detroit, Michigan .
The term singleton describes those who live in a single-person household, especially those who prefer the lifestyle of living alone. [ 1 ] [ 2 ] It was popularized by the Bridget Jones novels and films, [ 3 ] [ 4 ] [ 5 ] but it is also used in sociology .
Singleton pattern, a design pattern that allows only one instance of a class to exist; Singleton bound, used in coding theory; Singleton variable, a variable that is referenced only once; Singleton, a character encoded with one unit in variable-width encoding schemes for computer character sets
Singleton said she had a "slave farm", where she trained slaves for domestic service and artisan positions, and sold them at a profit. Singleton said that many were slaves of "good pedigree" like him, suggesting that the widow valued those of partially white ancestry. Determined to rejoin his mother, at the age of seven William ran away.
Henry Earl Singleton (November 27, 1916 – August 31, 1999) was an American electrical engineer, business executive, and rancher/land owner. Singleton made significant contributions to aircraft inertial guidance and was elected to the National Academy of Engineering .
A set such as {{,,}} is a singleton as it contains a single element (which itself is a set, but not a singleton). A set is a singleton if and only if its cardinality is 1. In von Neumann's set-theoretic construction of the natural numbers, the number 1 is defined as the singleton {}.