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Concept explainers
(Correct the Code Errors) Identity and correct the errors (s) in each of the following:
- if (age >= 65); { cout << “Age is greater than or equal to 65” << end1;
- if (age >= 65) { cout << “Age is greater than or equal to 65” << end1;
- unsigned int x {1}; unsigned int total;
- While (x <=100) total +=x;
- while (y>0) { cout << y << end1;
}
else {
cout << “Age is less than 65 << and end1” ;
}
else: {
cout << “Age is less than 65<< end1”;
}
while (x <=10) {
total += x;
++x;
}
++x;
++y;
}
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a)
To find and correct errors in the given program segment.
Explanation of Solution
The given program segment contains errors in the following highlighted statements:
if(age>=65); { cout<<"Age is greater than are equal to 65"<<endl; } else { cout<<"Age is less than 65<<endl"; }
Errors:
- If the statement is ending with a semi-colon.
- The keyword endl is enclosed within double-quotes. Double quotes should only contain string statements.
Correct code:
if(age>=65){ cout<<"Age is greater than are equal to 65"<<endl; } else { cout<<"Age is less than 65"<<endl; }
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b)
To find and correct errors in the given program segment.
Explanation of Solution
The given program segment contains errors in the following highlighted statements:
if(age>=65){ cout<<"Age is greater than are equal to 65"<<endl; } else; { cout<<"Age is less than 65 <<endl"; }
Errors:
- Else statement is ending with a semi-colon.
- The keyword endl is enclosed within double-quotes. Double quotes should only contain string statements.
Correct code:
if(age>=65){ cout<<"Age is greater than are equal to 65"<<endl; } else { cout<<"Age is less than 65"<<endl; }
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c)
To find and correct errors in the given program segment.
Explanation of Solution
The given program segment contains errors in the following highlighted statements:
unsigned int x{1}; unsigned int total; while(x<=10){ total + = x; ++x; }
Errors:
- Incorrect use of assignment operator (=).
Correct code:
unsigned int x{1}; unsigned int total; while(x<=10){ total =+ x; ++x; }
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d)
To find and correct errors in the given program segment.
Explanation of Solution
The given program segment contains errors in the following highlighted statements:
if(age>=65); { cout<<"Age is greater than are equal to 65"<<endl; } else { cout<<"Age is less than 65<<endl"; }
Errors:
- If the statement is ending with a semi-colon.
- The keyword endl is enclosed within double-quotes. Double quotes should only contain string statements.
Correct code:
if(age>=65){ cout<<"Age is greater than are equal to 65"<<endl; } else { cout<<"Age is less than 65"<<endl; }
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e)
To find and correct errors in the given program segment.
Explanation of Solution
The given program segment contains errors in the following highlighted statements:
while(y>0){ cout<<y<<endl; ++y; }
Errors:
- The code segment contains a logical error. The while loop is an infinite loop since it will keep running since y is always incremented and will always remain positive.
Correct code:
while(y>0){ cout<<y<<endl; --y; }
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Chapter 4 Solutions
C++ How to Program (10th Edition)
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