Question

Java // Strings

Using the StringBulderClass write an program that takes this text below and substitutes your name every time there is an "it" or "It". The program also should remove the commas and replace them with colons. Then print the resulting string "It was the best of times, it was the worst of times, it was the age of wisdom, it was the age of foolishness, it was the epoch of belief, it was the epoch of incredulity, it was the season of Light, it was the season of Darkness, it was the spring of hope, it was the winter of despair, we had everything before us, we had nothing before us, we were all going direct to Heaven, we were all going direct the other way-- in short, the period was so far like the present period, that some of its noisiest authorities insisted on its being received, for good or for evil, in the superlative degree of comparison only."

Answer 1

Code Screenshots:

//Define the //class StringModifier. public class StringModifier { //Define the main () method. public static void main (String ] args) //Define the string //to be modified. String new string = "It was the best of times, + "it was the worst of times, it was + "the age of wisdom, + "it was the age of foolishness, it was the " + "epoch of belief, it was the epoch of " + "incredulity, it was the season of Light, + "it was the season of Darkness, it was the " + "spring of hope, it was the winter of despair, + "we had everything before us, we " + "had nothing before " + "us, we were all going direct to Heaven, + "we were all going direct the other way-- " + "in short, the period was so far like the " + "present period, that some of its noisiest" + " authorities insisted on its being + "received, for good or for evil, + "in the superlative degree of " + "comparison only."; //Define an object of the StringBuilder class. StringBuilder obj = new StringBuilder (new string.toString () ); //Run the loop to modify the string. while (true) //If an instance of "it" is found followed //by a space then, replace //it with the required name. if(obj.indexOf ("it ") != -1) { int x = obj.indexof ("it "); obj.replace (x, x+2, "sample_name"); //0therwise, if an instance of "It" //is found followed by a space then, //replace it with the required name. else if(obj.indexof ("It ") != -1) { int x = obj.indexof ("It"); obj.replace (x, x+2, "sample name"); //0therwise, if an instance of //',' is found then, //replace it with a ':'. else if (obj.indexof (", ") != -1)

{ int x = obj.indexof (","); obj.replace (x, x+1, ":"); //0therwise, break //out of the loop. else break; //Display the //modified string. System.out.println(obj.toString () ) ;

Sample Output:

sample name was the best of times: sample name was the worst of times: sample name was the age of wisdom: sample name was the age of foolishness: sample name was the epoch of belief: sample name was the epoch of incredulity: sample name was the season of Light: sample name season of Darkness: sample name was the spring of hope: sample name was the winter of despair: we had everything before us: direct to Heaven: was the we had nothing before us: were all going were all going direct the other way-- we in short: the period was so far like the present period: that some of its noisiest authorities insisted on its being received: for good or for evil: in the superlative degree of comparison only.

Code to Copy:

//Define the

//class StringModifier.

public class StringModifier {

     

      //Define the main() method.

      public static void main(String[] args)

      {

            //Define the string

            //to be modified.

            String new_string = "It was the best of times, "

                        + "it was the worst of times, it was "

                        + "the age of wisdom, "

                        + "it was the age of foolishness, it was the "

                        + "epoch of belief, it was the epoch of "

                        + "incredulity, it was the season of Light, "

                        + "it was the season of Darkness, it was the "

                        + "spring of hope, it was the winter of despair, "

                        + "we had everything before us, we "

                        + "had nothing before "

                        + "us, we were all going direct to Heaven, "

                        + "we were all going direct the other way-- "

                        + "in short, the period was so far like the "

                        + "present period, that some of its noisiest"

                        + " authorities insisted on its being "

                        + "received, for good or for evil, "

                        + "in the superlative degree of "

                        + "comparison only.";

           

            //Define an object of the StringBuilder class.

            StringBuilder obj =

                        new StringBuilder(new_string.toString());

           

            //Run the loop to modify the string.

            while(true)

            {

                  //If an instance of "it" is found followed

                  //by a space then, replace

                  //it with the required name.

                  if(obj.indexOf("it ") != -1)

                  {

                        int x = obj.indexOf("it ");

                        obj.replace(x, x+2, "sample_name");

                  }

                 

                  //Otherwise, if an instance of "It"

                  //is found followed by a space then,

                  //replace it with the required name.

                  else if(obj.indexOf("It ") != -1)

                  {

                        int x = obj.indexOf("It");

                        obj.replace(x, x+2, "sample_name");

                  }

                 

                  //Otherwise, if an instance of

                  //',' is found then,

                  //replace it with a ':'.

                  else if(obj.indexOf(",") != -1)

                  {

                        int x = obj.indexOf(",");

                        obj.replace(x, x+1, ":");

                  }

                 

                  //Otherwise, break

                  //out of the loop.

                  else

                  {

                        break;

                  }

                 

            }

           

            //Display the

            //modified string.

            System.out.println(obj.toString());

      }

}