Describe a block and define an outer block and an inner block.
What will be an ideal response?
Within any class or method, the code between a pair of curly braces is called a block. An outer block begins at the first opening curly brace and ends at the last closing curly brace, at the end of a method. The inner block starts with the second opening curly brace and ends with the first closing curly brace.
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Extend the following class definition so it overloads the input and output operators.
``` class Vect { public: Vect () {} Vect ( double, double ); private: double r; // magnitude double theta; // direction (radians) }; // // Constructor 2: Initializes all components // Vect :: Vect( double vectMag, double vectDir ) { r = vectMag; theta = vectDir; } ```
Which of the following statements is false?
a. The parameter names and variable names that you use in lambdas cannot be the same as any other local variables in the lambda’s lexical scope; otherwise, a compilation error occurs. b. Lambdas may use only final local variables. c. A lambda that refers to a local variable in the enclosing lexical scope is known as a capturing lambda. d. All of the above statements are true.
The _________ constant can be used to display an error message in a message dialog.
a) JOptionPane.ERROR_MESSAGE b) JOptionPane.ERROR_ICON c) JOptionPane.ERROR d) JOptionPane.ERROR_IMAGE
In Outline view, body text is text that does not have a heading style applied
Indicate whether the statement is true or false