Answer:
b. & Puihaha
Explanation:
PHP variables are supposed to start with a $ sign.
Other rules followed by PHP variables are:
Starting character in variable name (after $) must be letter or _.
Other characters in variable names can be letters,numbers or _.
a. $_Puihaha
c. $Pui_haha
d. $Puihaha
satisfy these rules.
Whereas , b. & Puihaha does not satisfy as it starts with '&'. Moreover it also contains an invalid space character in the variable.
Answer:
//class Name
class Name {
// attributes gave you 3
String first_name;
String last_name;
int length = 0;
//constructor with 2 parameters
Name(String first_name, String last_name){
}
//methods
public String find_printed_name(){
return first_name + " " + last_name;
}
public void find_sortable_name(){
return last_name + ", " first_name.charAt(0);
}
public static void main(String[] args){
// instantiate the class
Name test_name = new Name("David", "Joyner");
System.out.println(test_name.first_name);
System.out.println(test_name.last_name);
System.out.println(test_name.find_printed_name());
System.out.println(test_name.find_sortable_name());
}
Explanation:
You didn't specify a language so I did it in Java.
You should know how to declare methods in Python.
This happened to me a while back. If you can’t find a contact to admin try emailing one of your teachers. My teacher told admin and then they fixed it.
Answer:
Bluetooth
Explanation:
Bluetooth is a standard to share data between Mobil devises, typically less than 10 m (33 ft), up to 100 m (330 ft), but the Bluetooth 5.0 has a range of 40–400 m (100–1,000 ft), in addition, NFC is something similar because needs a separation of 10 cm or less, and with RFID we can read to hundreds of meters.
