Posts Tagged ‘Java’

Declare a Scanner reference variable fileInput, and assign it a newly created Scanner object that is associated with a file named “data1”. (Do not concern yourself with any possible exceptions here– assume they are handled elsewhere.)

Given an initialized String variable fileName, write a sequence of statements that create a file whose name is given by the variable and whose content is a single line consisting of “This Is File: ” followed by the name of the file. Make sure that the data written to the file has been flushed from its buffer and that any system resources used during the course of running these statements have been released. (Do not concern yourself with any possible exceptions here– assume they are handled elsewhere.)

Write a sequence of statements that create a file named “greeting” and write a single line consisting of “Hello, World!” to that file. Make sure that the line has been flushed to the file and that any system resources used during the course of running these statements have been released. (Do not concern yourself with any possible exceptions here– assume they are handled elsewhere.)

Given an initialized String variable output, write an expression whose value is a reference to a newly created PrintWriter object associated with a file whose name is contained in output. (Do not concern yourself with any possible exceptions here– assume they are handled elsewhere.)

Declare a local variable output that is suitable for referring to an object that provides methods for writing to a text file.

Assume that sentence is a variable of type String that has been assigned a value. Assume furthermore that this value is a String consisting of words separated by single space characters with a period at the end. For example: “This is a possible value of sentence.”

Clunker Motors Inc. is recalling all vehicles in its Extravagant line from model years 1999-2002. A boolean variable named recalled has been declared. Given a variable modelYear and a String modelName write a statement that assigns true to recalled if the values of modelYear and modelName match the recall details and assigns false otherwise.

Write an expression that evaluates to true if and only if the string variable s equals the string “end”.

Given the String variable name, write an expression that evaluates to the third character of name.

Assume that name is a variable of type String that has been assigned a value. Write an expression whose value is the first character of the value of name. So if the value of name were “Smith” the expression’s value would be ‘S’.