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lions [1.4K]
3 years ago
11

A Consider the following method definition. The method printAllCharacters is intended to print out every character in str, start

ing with the character at index 0. public static void printAllCharacters (String str) for (int x = 0; x< str.length(); x++) // Line 3 System.out.print(str.substring(x, x + 1)); The following statement is found in the same class as the printAllCharacters method. printAllCharacters ("ABCDEFG"); Which choice best describes the difference, if any, in the behavior of this statement that will result from changing x < str.length() to x <= str.length() in line 3 of the method?
Α) The method call will print fewer characters than it did before the change because the loop will iterate fewer times.
B) The method call will print more characters than it did before the change because the loop will iterate more times.
C) The method call, which worked correctly before the change, will now cause a run-time error because it attempts to access a character at index 7 in a string whose last element is at index 6.
D) The method call, which worked correctly before the change, will now cause a run-time error because it attempts to access a character at index 8 in a string whose last element is at index 7.
E) The behavior of the code segment will remain unchanged.
Computers and Technology
1 answer:
ozzi3 years ago
7 0

Answer:

<em>(c) The method call, which worked correctly before the change, will now cause a run-time error because it attempts to access a character at index 7 in a string whose last element is at index 6.</em>

<em />

Explanation:

Given

printAllCharacters method and printAllCharacters("ABCDEFG");

Required

What happens when  x < str.length() is changed to x <= str.length()

First, we need to understand that str.length()  gets the length of string "ABCDEFG"

There are 7 characters in "ABCDEFG".

So: str.length()  = 7

The first character is at index 0 and the last is at index 6

Next, we need to simplify the loop:

for (int x = 0; x< str.length(); x++) means for (int x = 0; x< 7; x++)

The above loop will iterate from the character at the 0 index to the character at the 6th index

while

for (int x = 0; x<=str.length(); x++) means for (int x = 0; x<=7; x++)

The above loop will iterate from the character at the 0 index to the character at the 7th index

Because there is no character at the 7th index, the loop will return an error

Hence: (c) is correct

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8_murik_8 [283]

The program is an illustration of arrays.

Arrays are used to hold multiple values in one variable.

The program in C++ where comments are used to explain each line is as follows:

#include <iostream>

using namespace std;

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   int ratings[3];

   //This initializes the sum of the ratings to 0

   int total = 0;

   //The following iteration gets input for the three ratings

   for(int i = 0; i<3;i++){

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       //This calculates the sum of all inputs

       total+=ratings[i];

   }

   //This declares and initializes the lowest and the highest ratings

   int lowest = ratings[0], highest = ratings[0];

   //This iterates through the array

   for(int i = 1; i<3;i++){

       //The following if condition determines the lowest rating

       if (lowest > ratings[i]){    lowest = ratings[i];        }

       //The following if condition determines the highest rating

       if (highest < ratings[i]){            highest = ratings[i];        }

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   //This prints the output header

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       cout<<ratings[i]<<" ";   }

   //The prints the highest ratings

cout<<endl<<"Highest: "<<highest<<endl;

   //The prints the lowest rating

   cout<<"Lowest: "<<lowest<<endl;

   //The prints the average rating

cout<<"Average: "<<total/3<<endl;

   return 0;

}

At the end of the program, the ratings entered, the highest rating, the lowest rating, and the average of the ratings are printed.

See attachment for sample run

Read more about similar programs at:

brainly.com/question/13261254

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Information should be cross-checked to ensure more than one source provides the same factual information.

<h3>What is the source of information?</h3>

The source of information is the place, from where the data or information is generated. There are many sources of information, like internet, newspaper, television etc.

The options given in the problem regarding the information as,

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To get the factual information, one should always cross-checked the information from other sources.

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bagirrra123 [75]

INCOMPLETE QUESTION

Consider array items, which contains the values 0, 2, 4, 6 and 8. If method changeArray is called with the method call changeArray(items, items[2]), what values are stored in items after the method has finished executing?

public static void changeArray(int[] passedArray, int value)

{

passedArray[value] = 12;

value = 5;

}

A. 0, 2, 5, 6, 12.

B. 0, 2, 12, 6, 8.

C. 0, 2, 4, 6, 5.

D. 0, 2, 4, 6, 12.

Answer:

D. 0, 2, 4, 6, 12

Explanation:

The initial values for the array was 0,2,4,6,8. The method changeArray ( ) when called changes the the the value of the element at the ith index position to 12. so the final elements in the array will be 0,2,4,6,12

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