Write a while loop that replaces every occurrence of “cat” in the message with “dog” using the indexOf and substring methods.

Given:
public class ChallengeReplace
{
public static void main(String[] args)
{
String message = "I love cats! I have a cat named Coco. My cat's very smart!";

// Write a loop here that replaces every occurrence of "cat"
// in the message with "dog", using indexOf and substring.






}
}

Answer:

Complete the program using:

int index = message.indexOf("cat");

while(index != -1){

message = message.replace("cat","dog");

index = message.indexOf("cat");

}

System.out.print(message);

}

}

Explanation:

The line gets the index of string "cat"

int index = message.indexOf("cat");

The following operation is repeated until all occurrence of "cat"s has been replaced with dog

while(index != -1){

message = message.replace("cat","dog");

index = message.indexOf("cat");

}

This prints the new string

System.out.print(message);

}

}

The program illustrates the use of loops.

Loops are used to perform repetitive and iterative operations.

The code segment where comments are used to explain each line, is as follows:

//This gets the index of "cat" in the string message

int index = message.indexOf("cat");

//The following loop is repeated, until there is no occurrence of "cat" in the string

while(index != -1){

//This replaces "cat" with "dog"

message = message.replace("cat","dog");

//This gets another index of "cat" in the string message

index = message.indexOf("cat");

}

//This prints the new string

System.out.print(message);

}

}

At the end of the loop, all occurrence of "cat" are replaced with "dog".

Read more about similar programs at:

https://brainly.com/question/20461017

The way things are arranged on a publication is referred to as the _____.

style
guides
layout
scheme

100 POINTS PLEASE HELP Ken Thompson and Dennis Ritchie co-created which operating system?

A variety of fonts may be used in letter writing as long as the font size is 12 points.
True
False

Bill has several workbooks open, and he would like to see them all side by side on the screen. Which option on the
Arrange All menu should he use?
Tiled
Cascade
Horizontal
Vertical

which are the two alternatives for pasting copied data in a target cell groups

What is a goal?
What is a strategy?
What are tactics?
hy is it important for a goal to be specific?

Which sentences describe the value of a conditional statement? Check all that apply.

It allows a programmer to designate a portion of the code that will be run only when a condition is met.

It creates new program code when a condition is met.

It allows a programmer to set a condition that must be met.

It incorporates decision-making into a program.

For your biology class, you will be giving a presentation of the findings of a plant growth experiment. Which application is best suited for this presentation?


Writer or Word


Impress or PowerPoint


Notepad or Paint


Calc or Excel

The ____, which amplified weak electrical signals, enabled electrical sound recording.

Which of the following might cause a mobility impairment that limits computer use? Select 3 options.
a color blindness
Odyslexia
O neurological issue
injury
O genetic issue