Answer:
computer programming
Explanation:
says the answer in the question
Something like the following. Also you need to give what language you are using. Anyways, you should be able to convert this to your language of choice.
<script type="text/javascript">
function checkGeneration() {
var gen = ["Baby Boomer ","Generation X","Xennials","Generation Y"];
var reversestr = "";
var getyear = window.prompt("Enter a 3 digit number: ");
if (parseInt(getyear) <= 1964) {
alert(gen[0]);
} else if(parseInt(getyear) <= 1979) {
alert(gen[1]);
} else if(parseInt(getyear) <= 1985) {
alert(gen[2]);
} else if(parseInt(getyear) <= 1995) {
alert(gen[3]);
}
}
checkGeneration();
</script>
Answer: The difference between call by value and call by reference is that in call by value the actual parameters are passed into the function as arguments whereas in call by reference the address of the variables are sent as parameters.
Explanation:
Some examples are:
call by value
#include <stdio.h>
void swap(int, int);
int main()
{ int a = 10, b= 20;
swap(a, b);
printf("a: %d, b: %d\n", a, b);
}
void swap(int c, int d)
{
int t;
t = c; c = d; d = t;
}
OUTPUT
a: 10, b: 20
The value of a and b remain unchanged as the values are local
//call by reference
#include <stdio.h>
void swap(int*, int*);
int main()
{
int a = 10, b = 20;
swap(&a, &b); //passing the address
printf("a: %d, b: %d\n", a, b);
}
void swap(int *c, int *d)
{
int t;
t = *c; *c = *d; *d = t;
}
OUTPUT
a: 20, b: 10
due to dereferencing by the pointer the value can be changed which is call by reference
