Program Of Call By Reference In C

#include<stdio.h>

#include<conio.h>

int sum(int *x,int *y);

main()

{

int a,b,c;

clrscr();

printf("Enter first =");

scanf("%d",&a);

printf("Enter 2nd =");

scanf("%d",&b);

c=sum(&a,&b);

printf("\n ANswer=%d",c);

getch();

}

int sum(int *x,int *y)

{

int z;

z= *x + *y;

return z;

}

Program Of Call By Value In C

#include<stdio.h>

#include<conio.h>

int sum(int x,int y);

main()

{

int a,b,c;

clrscr();

printf("Enter first =");

scanf("%d",&a);

printf("Enter 2nd =");

scanf("%d",&b);

c=sum(a,b);

printf("\n ANswer=%d",c);

getch();

}

int sum(int x,int y)

{

int z;

z=x+y;

return z;

} 

Program Of Pointer Function ( Call By Refrence) In C

#include<stdio.h>

#include<conio.h>

int sum(int *x,int *y);   // Fnction Declatration

main()

{

int a,b,c;

clrscr();

printf("Enter NUmbers=");

scanf("%d%d",&a,&b);

c=sum(&a,&b);   // Function Call

printf("\n NAswer = %d",c);

getch();

}

int sum(int *x,int *y)    // Function Define

{

int z;

z= *x + *y;

return z;

}

Program Of Logical Operators In C

#include<stdio.h>

#include<conio.h>

main()

{

int a,b,c;

clrscr();

printf("Enter First Number=");

scanf("%d",&a);

printf("Enter Second Number=");

scanf("%d",&b);

printf("Enter Third Number=");

scanf("%d",&c);

if(a>b && a>c)

{

printf("\n A is Greater");

}

if(b>a && b>c)

{

printf("\n B is Greater");

}

if(c>a && c>b)

{

printf("\n C is Greater");

}

getch();

}

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The logical operators compare Boolean expressions and return a Boolean result. The And, Or, AndAlso, OrElse, and Xor operators take two operands, and the Not operator takes a single operand.

The Not operator performs logical negation on a Boolean expression. Put simply, it yields the opposite of the expression it evaluates. If the expression evaluates to True, Not yields False; if the expression evaluates to False, Not yields True. An example is shown below:


Dim x As Boolean x = Not 23 > 12 ' x equals False. x = Not 23 > 67 ' x equals True.


The And operator performs logical conjunction on two Boolean expressions. That is, if both expressions evaluate to True, then the And operator returns True. If either or both expressions evaluate to False, then And returns False.

The Or operator performs logical disjunction on two Boolean expressions. If either expression evaluates to True, Or returns True. If neither expression evaluates to True, Or returns False.

Xor performs logical exclusion on two expressions. If either expression evaluates to True, but not both, Xor returns True. If both expressions evaluate to True or both expressions evaluate toFalse, Xor returns False.

Program To Access Class Member In C++

#include<iostream.h>

#include<conio.h>

class Add

{

Private:

ont a;

Public:

int b;

void display( )

{

a=8;

b=9;

cout<<"\n a="<<a;    //can be access

cout<"\ b ="<<b;   // can be access

}

};

main( )

{

clrscr()

Add a1;

a1.display( );

// cout<<"\n private value of class ="<<a1.a;

// can't be Access

cout <<"\n public value of class="<<a1.b;

getch();

}