Posts Tagged ‘Java’

LANGUAGE: Java CHALLENGE: Assume that word is a variable of type String that has been assigned a value. Write an expression whose value is a String consisting of the first three characters of the value of word. So if the value of word were “dystopia” the expression’s value would be “dys”.

LANGUAGE: Java CHALLENGE: Assume that name is a variable of type String that has been assigned a value. Write an expression whose value is a String containing the second character of the value of name. So if the value of name were “Smith” the expression ‘s value would be “m”.

LANGUAGE: Java CHALLENGE: Assume that word is a variable of type String that has been assigned a value. Assume furthermore that this value always contains the letters “dr” followed by at least two other letters. For example: “undramatic”, “dreck”, “android”, “no-drip”. Assume that there is another variable declared, drWord, also of type String. Write the statements…

LANGUAGE: Java CHALLENGE: Write a program that reads lines from a file and prints them out, removing all occurrences of a specified string from the lines. For example, if the class that housed your program was called Exercise12_11, running this prompt on the command line: java Exercise12_11 John filename Would print out the contents of the…

LANGUAGE: Java CHALLENGE: Besides determining the dimensions of a newly created Java GUI application window, what additional method must be invoked to make the window appear to the user?

LANGUAGE: Java CHALLENGE: The method that determines the dimensions of a Java GUI application window is _________

LANGUAGE: Java CHALLENGE: The ___________________ class that represents the arrangement scheme of simply placing components in left-to-right order on a Container.

LANGUAGE: Java CHALLENGE: The class definition for objects that receive notifications of user operations on controls like buttons must contain the following phrase: _______________

LANGUAGE: Java CHALLENGE: The ActionListener interface requires that the _____________ method be implemented.

LANGUAGE: Java CHALLENGE: An object that receives notifications of user operations on controls like buttons must provide the __________________ method.

LANGUAGE: Java CHALLENGE: Clicking a button may result in notification being sent to an __________________________ object.

LANGUAGE: Java CHALLENGE: The general term for methods that are invoked as a result of a user action is _____________