Question

String Manipulator Write a program to manipulate Strings. Store your full name into one String variable. It must include first name, middle name, last name, cach separated by spaces. Spaces could vary. If you do not have a middle name make up one For example the string to be processed could be any of the following John Plain Doe John Plain Doc John Plain Doe Your program must be able to process any of the above strings You must provide the following methods: Output the number of characters in your full name excluding the spaces (use methods from the String class). Write a method that accepts the name as its parameter and returns the number of the characters in the name Write a method that accepts the full name a . a String and returns the first name 2. Write a method that accepts the full name as a string and returns the last name 4. 3. Write a method that accepts the full name as a string and returns the middle name; Write a method that accepts the first name, middle name and last name as string and returns the total number of the characters in the full name. 5. 6. Write a method that accepts the full name as a string and returns the index of the last name. 7. Write a method that accepts the first name as a string and encrypts the first name by swapping the first and last letter. For example if the first name is John then it will be encrypted to the from Nohj 8. Write a methed to decrypt the name 9. Write a method that accepts the full name as a parameter and returns it in all uppercase. 10. Write a method called run that calls all the other methods to generate the output Sample output: Run your program with the name: Joe Franklin Smith For example output for John Plain Doc would be: 1. Number of characters in my complete name is 12 2. The index of my last name is: 11 3. John Plain Doe John Doc Doe, John P 4. My middle name is Plain and the number of characters in my middle name is 5. 5. My last name is Doe and the number of characters in my last name is 3. 6. My complete name in upper case: JOHN PLAIN DOE 7. My encrypted first name is: Nohj 8. My decrypted first name is John 9. my fall name in the reverse order is: EOD NIALP NHOJ ar

use Java and it must work for any name

Answer 1

//save it as stringManipulator.java

package project123;
import java.util.Scanner;

public class stringManipulator {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
String fullName;
System.out.print("Enter full name: ");
fullName = sc.nextLine();
fullName = fullName.trim(); //remove extra spaces at the start and end of string
  
run(fullName);
}
public static int numChars(String nameString) {
int count = 0;
for (int i = 0; i < nameString.length(); i++) {
//read each char from name and count characters excluding space and tab
if (nameString.charAt(i) != ' ' && nameString.charAt(i) != '\t') {
//if char is not a space and not a tab then
count++;
}
}
return count;
}
public static int numChars(String first, String middle, String last) {
int n;
// make full name by trimming start and end spaces
String full = first.trim()+ " " + middle.trim() + " " + last.trim();
System.out.print(full + " ");
n = numChars(full); //call our existing method to count characters
return n;
}
  
public static String getFName(String nameString) {
String fname;
nameString = removeSpaces(nameString); //get clean name without extra spaces and tabs
String words[] = nameString.split(" ");//split nameString into words array by space
//so that first element in array has first word in string i.e firstname
  
int i = 0; //first element of array
fname = words[i]; //first word in array is firstname
return fname;
}
  
public static String getLName(String nameString) {
String lname;
nameString = removeSpaces(nameString); //get clean name without extra spaces and tabs
String words[] = nameString.split(" ");//split nameString into words array by space
//so that last element in array has last word in string i.e lastname
  
int i = words.length-1; //last element of array
lname = words[i]; //last word in array is lastname
return lname;
}
  
public static String getMName(String nameString) {
String middle="";
String fullName = removeSpaces(nameString);
String words[] = fullName.split(" ");
if (words.length == 3) { //if fullname contains 3 words then proceed to get middle
middle = words[1]; //get second word as middle name
}
else{ //if fullname doesn't has 3 words then, cannot get middle name
System.out.println("Cannot get middle name from: " + fullName);
return "";
}
return middle;
}
  
public static String removeSpaces(String nameString) {
//get clean name without extra spaces and tabs
String name="";
nameString = nameString.replace("\t", ""); // remove tabs from string
String words[] = nameString.split(" ");//split nameString into words array by space
  
//now create name using extracting nonEmpty words from above array
for (int i = 0; i < words.length; i++) {
if (words[i].length() > 0) { //if word is not empty
name += " " + words[i]; //then include it in name
}
}
return name.trim();
}
  
public static int indexLastName(String nameString) {
String name = removeSpaces(nameString); //get clean name without extra spaces and tabs
String lastName = getLName(name);
int index = name.indexOf(lastName);
  
return index;
}
  
public static String encryptFName(String fname) {
String str = "";
  
if (fname.length() > 0) {
char fchar = fname.charAt(0); //first character
char lchar = fname.charAt(fname.length()-1); //last character
  
str += lchar; // add last char at begining
for (int i = 1; i < fname.length()-1; i++) {
//add all chars to string except fist and last
str += fname.charAt(i);
}
str += fchar; //add first char at the end
}
return str;
}
public static String getUpperName(String nameString) {
nameString = removeSpaces(nameString); //get clean name without extra spaces and tabs
  
return nameString.toUpperCase();
}
  
public static String getReverse(String nameString) {
nameString = removeSpaces(nameString); //get clean name without extra spaces and tabs
String reverse="";
for(int i = nameString.length() - 1; i >= 0; i--)
{
reverse = reverse + nameString.charAt(i);
}
return reverse;
}
  
public static void run(String fullName) {
System.out.print("1. Number of characters in my complete name are: ");
System.out.println( numChars(fullName) );
System.out.print("2. First name is: ");
System.out.println( getFName(fullName) );
System.out.print("3. Last name is: ");
System.out.println( getLName(fullName) );
System.out.print("4. Middle name is: ");
System.out.println( getMName(fullName) );
  
System.out.println("5. passing first middle last names separatly");
System.out.print(" Number of characters in my full name are: ");
System.out.println( numChars("John", "Plain", "Doe")); //pass first middle last names separatly
  
System.out.print("6. Index of last name is: ");
System.out.print( indexLastName(fullName) );
System.out.println(", Full Name= " + removeSpaces(fullName));
System.out.print("7. encrypted First name is: ");
String encrp = encryptFName( getFName(fullName) ); //pass fname to encrypt method
System.out.println( encrp );
System.out.print("8. decrypted First name is: ");
String decrp = encryptFName(encrp); //if we pass encrypted fname to method it will swap first and last chars,
//so we get decrypted fname
System.out.println( decrp );
System.out.print("9. UpperCase name is: ");
String upper = getUpperName(fullName);
System.out.println( upper );
System.out.print("10. Reverse name is: ");
String rev = getReverse(fullName);
System.out.println( rev );
}
}

/* output
Enter full name: John Plain Doe
1. Number of characters in my complete name are: 12
2. First name is: John
3. Last name is: Doe
4. Middle name is: Plain
5. passing first middle last names separatly
Number of characters in my full name are: John Plain Doe 12
6. Index of last name is: 11, Full Name= John Plain Doe
7. encrypted First name is: nohJ
8. decrypted First name is: John
9. UpperCase name is: JOHN PLAIN DOE
10. Reverse name is: eoD nialP nhoJ

*/