Chapter 2, Problem 2.7E

Identify and correct the errors in each of the following statements. (Note: There may be more than one error per statement.)

Program Plan Intro

To identify and correct the error in the following statement.

Program Description Answer

scanf(“%d”, value);

Explanation of Solution

Given information:

scanf(“d”, value);

Explanation:

Format specifier missing %d is used to take integer type value from the user. Missing percentage symbol % to be placed before the format specifier d.

Correct statement:

scanf(“%d”, value);

Program Plan Intro

To identify and correct the error in the following statement.

Program Description Answer

printf(“The product of %d and %d is %d\n”,x,y);

Explanation of Solution

Given information:

printf(“The product of %d and %d is %d”\n,x,y);

Explanation:

The \n is escape sequence used to assign a new line. All the escape sequences used inside the double quotes (“”) of printf statement. Here, the escape sequence is out of the double quotes area. To correct this statement, make \n inside the double quotes area.

Correct statement:

printf(“The product of %d and %d is %d\n”,x,y);

Program Plan Intro

To identify and correct the error in the following statement.

Program Description Answer

sumOfNumbers=firstNumber + secondNumber;

Explanation of Solution

Given information:

firstNumber + secondNumber = sumOfNumbers

Explanation:

The associativity of equals to (=) operator is right to left so that it will first calculate firstNumber + secondNumber, then assign this value in sumOfNumbers. Also, semicolon (;) missing at the end of the statement.

Correct statement:

sumOfNumbers = firstNumber + secondNumber;

Program Plan Intro

To identify and correct the error in the following statement.

Program Description Answer

if(number >= largest)

largest=number;

Explanation of Solution

Given information:

if(number => largest)

largest==number;

Explanation:

The operator Greater then or equals to having a wrong syntax (=>), correct syntax should be (>=). Comparison operator is used instead of the assignment operator (=).

Correct statement:

if(number >= largest)

largest=number;

Program Plan Intro

To identify and correct the error in the following statement.

Program Description Answer

/* Program to determine the largest of the integer */

Explanation of Solution

Given information:

*/ Program to determine the largest of the integer /*

Explanation:

Wrong syntax of multiline comment, the correct syntax should be: -

/* some-comment */

Correct statement:

/* Program to determine the largest of the integer */

Program Plan Intro

To identify and correct the error in the following statement.

Program Description Answer

scanf(“%d”, &anInteger);

Explanation of Solution

Given information:

Scanf(“%d”, anInteger);

Explanation:

The initial of Scanf keyword should be lowercase. The ampers and (&) required before anInteger.

Correct statement:

scanf(“%d”, &anInteger);

Program Plan Intro

To identify and correct the error in the following statement.

Program Description Answer

printf(“Remainder of %d division by %d is %d\n”, x, y, x%y);

Explanation of Solution

Given information:

printf(“Remainder of %d division by %d is\n”, x, y, x%y);

Explanation:

Format %dspecifier needed to print the value of x%y.

Correct statement:

printf(“Remainder of %d division by %d is %d\n”, x, y, x%y);