CSE 2221 Exams Bundle || Questions with complete Solution| Verified Answers

The Implements Relation - ANSWER The implements relation may hold between a class and an interface. If C implements I then class C contains code for the behavior specified in interface I. This means that C has method bodies for instance methods whose contracts are specified in I. The code of C lo...

How to declare output stream to console - ANSWER SimpleWriter out = new SimpleWriter1L(); How to accept input stream from console - ANSWER SimpleReader in = new SimpleReader1L(); How to close input/output stream - ANSWER ();/(); Simple concatenation - ANSWER Use the "+" symbol to combine two st...

Why is the container class called Stack? - ANSWER It follows the same sort of organization and manipulation type that a stack in the program execution would perform LIFO (last-in-first-out) LIFO - ANSWER last in first out How is a Stack different than the queue? - ANSWER it is like a "dual" A q...

Alias - ANSWER When two reference types point to the same object. Which variable type can be treated as a primitive? - ANSWER Immutable. Which reference types are immutable? - ANSWER XMLTree, String. Implements - ANSWER Classes contain code for methods used within an interface. That code from th...

or a method formal parameter p, which parameter mode guarantees that #p cannot appear n the ensures clause for the method's contract? a. clears b. replaces c. restores d. updates - ANSWER B. replaces You may reason about the behavior of Java code involving immutable types exactly as if they ...