Which mechanism in OOP is implemented by making instance variables private and providing accessor and mutator methods in a class

Hola, me podrian resolver estos ejercicios en php? ejercicio1: crear una pagina que permita realizar una conversion monteria: nuevos soles, dolares, euros. se debe seleccionar el valor monetario origen y conversion asi como tambien el monto a convertir ejercicio2: crear un pagina que muestre la tabla de sumar de un rango de numeros ingresados por teclado. ejercicio3: ingresar una palabra y mostrar la escritura del final al inicio ejercicio4: ingresar la fecha de nacimiento de una persona y determinar, cuantos años, meses y dias tiene ejercicio5: ingresar un rango de valor numerico y mostrar, los numeros pares, impares y primos.

This program reads a file called 'test. txt'. you are required to write two functions that build a wordlist out of all of the words found in the file and print all of the unique words found in the file. remove punctuations using 'string. punctuation' and 'strip()' before adding words to the wordlist. write a function build_wordlist() that takes a 'file pointer' as an argument and reads the contents, builds the wordlist after removing punctuations, and then returns the wordlist. another function find_unique() will take this wordlist as a parameter and return another wordlist comprising of all unique words found in the wordlist. example: contents of 'test. txt': test file another line in the test file output: ['another', 'file', 'in', 'line', 'test', 'the']

You begin your first day of responsibilities by examining the recent is security breach at gearup to get ideas for safeguards you will take. at gearup, criminals accessed the company's improperly-secured wireless system and stole customers' credit card information as well as employee social security numbers. what kind of computer crime did gearup face?