Create a class named safestack that implements a stack of strings.
use an instance of stack from to hold string values and implement the same interface as the data type. however, your implementation (class) should throw an exception if an attempt is made to remove a value from an empty stack.

Which of the following "invisible" marks represents an inserted tab?

Individuals suffering from technology overload feel distressed when deprived of computers and mobile devices.true/fasle

Which of the following statements is false? a. package access is rarely used. b. use the access modifier package to give a method or variable package access. c. classes in the same source file are part of the same package. d. if a program uses multiple classes from the same package, these classes can access each other's package access members directly through references to objects of the appropriate classes, or in the case of static members, through the class name.