Question

Write a program that takes a String containing a text using the method signature

String useProperGrammar(String text)

Your method should replace the word ‘2’ with ‘to’ and return the updated text.

For example,

useProperGrammar("can you go 2 the store?")

should return

"can you go to the store?"

This method should also print out the number of grammatical errors that were fixed.

For example, for useProperGrammar("back 2 back 2 back"), the method would also print:

Fixed 2 grammatical errors:

In the main method, ask the user to input a String, and print the results of useProperGrammar using the user input.

Coding Portion:

public class Grammar
{
public static void main(String[] args)
{
// Ask the user to enter a sentence that uses the word 2 instead of to.
  
// Call the method useProperGrammar to process the string according to
// the directions.
}
  
public static String useProperGrammar(String theText)
{
// Process the sentence that is sent to this method and replace every 2
// with the word to.
}
}

Answer 1

CODE:

package grammar;

//importing Scanner class
import java.util.Scanner;
public class Grammar {
public static void main(String[] args) {
  
//creating object for Scanner class
Scanner scan = new Scanner(System.in);
  
System.out.print("Enter the text with 2 to be changed : ");
//read a line of text as input
String theText= scan.nextLine();   
  
//calling useProperGrammar() method with theText as parameter.
String newText = useProperGrammar(theText);
//printing the modified text returned by the useProperGrammar() method
System.out.println("Modified text : "+newText);
  
}
//useProperGrammar() method accpets a line of text as input and returns a modified line of text   
public static String useProperGrammar(String theText){
  
//initializing s and count as 0
int s = 0;
int count = 0; //count stores the number of occurence of '2' in the String
//creating an empty String , at which we will append a number of substrings to get the required String
String newText = "";
  
//loop runs for the length of the input String
for(int i = 0 ; i < theText.length() ; i++){
if(theText.charAt(i) == '2'){ //if statement works, when the character equals to '2'
//taking a section of String from s to i and appending them to the new String with '2' being replaced by 'to'
newText += theText.substring(s, i) + "to";
//updating s as 1+1   
s = i+1 ;
//incrementing count
count++;
}
}
  
System.out.println("Fixed "+count+" grammatical error(s).");
//appending the remaining characters of the main(input) String to the new String
newText += theText.substring(s, theText.length());
return newText;
}
}

//Screenshot of Code:

//Sample I/O:

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