Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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I'm using substrings() in java, what is the best formula to use for user input?

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import java.util.Scanner;

class Program41 {
//PSEUDOCODE
    //Write a program that prompts the user to enter a full name consisting of three names
    //first
    //middle
    //last
    // into one String variable
    //Then use methods of class String to:
        //print the number of characters in the full name, excluding spaces
        //print just the middle name and the number of characters in it
        //print the three initials of the name
        //print the last name in all lower case
        //print the full name in the usual alphabetical format (Last, First Middle) and proper case
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter full name:");
        String fullName = sc.nextLine();
        
        System.out.println("\nNumber of Charatcers in your name " + fullName + "':" + fullName.replace("","").length());
        
        String[] subNames = fullName.split(" ");
        
        System.out.println("\nMiddle Name: " + subNames[1]);
        System.out.println("Total characters: " + subNames[1].length());
        
        System.out.println("Initials: " + subNames[0].charAt(0) + " " + subNames[1].charAt(0) + " " + subNames[2].charAt(0));
        
        System.out.println("Last name is all lowercase: " + subNames[2].toLowerCase());
        
        System.out.println("Full name: " + subNames[2] + ", " + subNames[0] + " " + subNames[1]);
        sc.close();
    }


}

 

 

The question I have is, am I still using array in this programing? I thought I took it out but I am not sure.

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Follow-up Questions
Read through expert solutions to related follow-up questions below.
Follow-up Question

import java.util.Scanner;

class Program41 {
//PSEUDOCODE
    //Write a program that prompts the user to enter a full name consisting of three names
    //first
    //middle
    //last
    // into one String variable
    //Then use methods of class String to:
        //print the number of characters in the full name, excluding spaces
        //print just the middle name and the number of characters in it
        //print the three initials of the name
        //print the last name in all lower case
        //print the full name in the usual alphabetical format (Last, First Middle) and proper case
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter full name:");
        String fullName = sc.nextLine();
        
        System.out.println("\nNumber of Charatcers in your name " + fullName + "':" + fullName.replace("","").length());
        
        String[] subNames = fullName.split(" ");
        
        System.out.println("\nMiddle Name: " + subNames[1]);
        System.out.println("Total characters: " + subNames[1].length());
        
        System.out.println("Initials: " + subNames[0].charAt(0) + " " + subNames[1].charAt(0) + " " + subNames[2].charAt(0));
        
        System.out.println("Last name is all lowercase: " + subNames[2].toLowerCase());
        
        System.out.println("Full name: " + subNames[2] + ", " + subNames[0] + " " + subNames[1]);
        sc.close();
    }


}

 

 

The question I have is, am I still using array in this programing? I thought I took it out but I am not sure.

Solution
Bartleby Expert
by Bartleby Expert
SEE SOLUTION
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