Computer Applications
The following program segment calculates and displays the factorial of a number. [Example : Factorial of 5 is 1 x 2 x 3 x 4 x 5 = 120]
int p, n = 5, f = 0;
for(p = n; p > 0; p--)
f *= p;
System.out.println(f);
Name the type of error if any; correct the statement to get the desired output.
Answer
The logical error occurs because the factorial variable f is initialized to 0. Since multiplication with 0 always results in 0, the loop will never produce the correct factorial value.
The corrected code is as follows:
int p, n = 5, f = 1;
for(p = n; p > 0; p--)
f *= p;
System.out.println(f);
Related Questions
Give the output of the following program segment:
String S = "GRACIOUS".substring(4); System.out.println(S); System.out.println("GLAMOROUS".endsWith(S));Give the output of the following program segment and mention how many times the loop is executed.
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void swap() { int x[] = {4, 8, 19, 24, 15}; (1) ............... ; (2) ............... ; x[0] = x[0] / x[1]; System.out.println(x[0] + " " + x[1]); }