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Requirements Develop a software system for simple account management using “push” Model View Controller architecture (i.e. a view receives updates from a model by events), exception mechanism and JUnit framework in Java with Swing (cf. JUnit example at [login to view URL] , [login to view URL] [login to view URL] ). On start up the system should load a list of accounts from a file specified in a command line and present the user with a frame that contains • a drop down list populated with account IDs with names appended (in increasing order of IDs); the first account ID should be pre-selected; the items in the drop-down list immutable • buttons “Edit account in $”; “Edit account in Euros”; “Edit account in Yen” • button Save • button Exit An entry in a file with a list of accounts should contain a string with a name (only letters allowed); a string with an ID (only digits allowed); a string with an amount in $ (digits and decimal point allowed; thus amount >=0.0). IDs are unique; names can repeat. More detailed instructions in the word document attached