Java C Basics Questions 3rd, Java C Basics MCQ, Java C Basics Quiz

When an automatic array is partially initialized, the remaining elements are initialized to 0.

Since x < y turns to be TRUE it is replaced by 1. Then 1 < z is compared and to be TRUE. The 1 is assigned to i.

int length; denotes that variable length is int(integer) data type.

char int; here int is a keyword cannot be used a variable name.
int long; here long is a keyword cannot be used a variable name.

float double; here double is a keyword cannot be used a variable name.

So, the answer is int length;

In case of a conflict between a local variable and global variable, the local variable gets priority.

In this program the compiler will not know that the function display() exists. So, the compiler will generate “Type mismatch in redeclaration of function display()”.

To over come this error, we have to add function prototype of function display().
Another way to overcome this error is to define the function display() before the int main(); function.

#include<stdio.h>
void display(); /* function prototype */

int main()
{
display();
return 0;
}
void display()
{
printf(“IndiaBIX.com”);
}
Output: javatpoint.com

Note: This problem will not occur in modern compilers (this problem occurs in TurboC but not in GCC).

True, Depending on the operating system/compiler/system architecture you are working on, the range of data types can vary.

6.68 is double.
6.68L is long double constant.
6.68f is float constant.
6.68LF is not allowed in c.

True,
float = 4 bytes.
double = 8 bytes.

The only way this can be achieved is to define the variable locally in main() instead of defining it globally and then passing it to the functions which need it.

False, The range of double is -1.7e-308 to 1.7e+308.

True, we can use long double; if double range is not enough.
double = 8 bytes.
long double = 10 bytes.

True, When a function is declared inside the source file, that function(local function) get a priority than the extern function. So there is no need to declare a function as extern inside the same source file.

Yes, we have to specify the data type of the parameter when declaring a function.

False, The range of float is -3.4e-38 to 3.4e+38.

True, we can find the size of short integer and long integer using the sizeof() operator.
Example:

#include<stdio.h>
int main()
{
short int i = 10;
long int j = 10;
printf(“short int is %d bytes., long int is %d bytes.”,
sizeof(i),sizeof(j));
return 0;
}
Output:
short int is 2 bytes.
long int is 4 bytes.