Respuesta :
Answer:
The program to this question can be given as:
Program:
import java.util.*; //import java util package for input.
public class NameApp //define class.
{
public static void main(String[] args) //define main method.
{
String First_Name,Last_Name,generate_username; //define Variables
Scanner ob = new Scanner(System.in); //creating Scanner class object.
System.out.println("Please Enter First Name: "); //prompt-1 for first name.
First_Name=ob.next(); //input first name.
System.out.print("Please Enter Last Name: "); //prompt-2 for last name.
Last_Name=ob.next(); //input Last name.
System.out.print("Name you insert is:"+First_Name+" "+Last_Name); //Display First_Name and Last_Name.
int addnumber= 10 + (int)(Math.random()*99); //use random function for number (10-99).
generate_username=First_Name.substring(0,1)+Last_Name.substring(0,5)+addnumber; //First_Name+Last_Name+addnumber
System.out.print("Your generated name is:"+generate_username); //display generated name..
}
}
Output:
Please Enter First Name: ABCDE
Please Enter Last Name: PQRST
Name you insert is: ABCDE PQRST
Your generated name is: APQRST34
Explanation:
The explanation of the program can be given as:
First, we import the java util package in this package there are many packages like Scanner class. This class is used for taking user input from the user. We define a class i.e. NameAPP. In this class, we define a variable that is already given in the question. After declaring a variable we create a scanner class object to take input from the user. Then we print the name that is inserted by the user. Then we use the random function. It is a math function that is used for print random integer values between the range. Then we declare the variable generated_username that's datatype is string because the string is a sequence of character. It holds the whole value. To print the generated value we use the print function i.e. System.out.print() or we can also use the System.out.println(). Where print() is used for print in that line and println() is used for print in the next line.
The required application codes are attached below.
App:
An application programming interface (API), in the context of Java, is a collection of prewritten packages, classes, and interfaces with their respective methods, fields, and constructors. Similar to a user interface, which facilitates interaction between humans and computers, an API serves as a software program interface facilitating interaction.
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