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If statement:
The condition evaluates to either true or false. True is always a
If statement:
The condition evaluates to either true or false. True is always a non-zero value, and false is a value that
contains zero. Instructions can be a single instruction or a code block enclosed by curly braces { }.
Program :
#include
int main()
{
int num1=1;
int num2=2;
if(num1
int main()
{
int num=19;
if(num<10)
{
printf("The value is less than 10");
}
else
{
printf("The value is greater than 10");
}
return 0;
}
Output:
The value is less than 10
nested if statements :
Syntax :
if(condition)
{
if(condition)
{
here goes statements;
}
}
Program
#include
int main()
{
int num=1;
if(num<10)
{
if(num==1)
{
printf("The value is:%dn",num);
}
else
{
printf("The value is greater than 1");
}
}
else
{
printf("The value is greater than 10");
}
return 0;
}
Output:
The value is:1
Nested Else-if statements :
if (test - expression 1) {
statement1;
} else if (test - expression 2) {
Statement2;
} else if (test - expression 3) {
Statement3;
} else if (test - expression n) {
Statement n;
} else {
default;
}
Statement x;
#include
int main()
{
int marks=83;
if(marks>75){
printf(“First class”);
}
else if(marks>65){
printf(“Second class”);
}
else if(marks>55){
printf(“Third class”);
}
else{
printf(“Fourth class”);
}
return 0;
}
Output:
First class
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