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1 DCIS-PIEAS
Computer Fundamental
Lab-
Convert the following statements to C/C++ conditional statements (Use relational +
logical operators)
Given that A,B,C,D are all integers having some initial value (which is not know) Example Statement Conditional Statement A,B,C and D are all positive numbers A>0 && B>0 && C>0 && D>
Convert the following into conditional statements for A,B,C and D
A, B, C, and D all are negative numbers
A and B are positive numbers or C and D are negative numbers
A is even B is odd C is positive and D is negative
Any of A,B,C or D is divisible by 5
A or B is even and C is odd
A and B are greater than 20 or C and D are less than 100
2 DCIS-PIEAS
Write the following code, execute it and compare the output
Program-01 (character input) #include <stdio.h> #include <conio.h> #include <iostream.h> main() {
char ans;
cout<<”Is today your birthday? (Y/N) : “; cin>>ans;
if(ans==’y’ || ans == ‘Y’) cout<<” Happy Birthday To You “<<endl ; else cout<<”Have a nice day”<<endl; getch(); }
Program-02 (Simple while loop) #include <stdio.h> #include <conio.h> #include <iostream.h> main() {
int a=10; while(a<1){ cout<<”Value of a = “<<a; a--; }
getch(); }
Program-03 (Conditional while loop) #include <stdio.h> #include <conio.h> #include <iostream.h> main() { int a=10; while(a%2!=0){
cout<<”Enter Value of a = “; cin>>a; cout<<endl; } getch(); }
Program-
Write a program that lets user enter an integer value between 1 and 10, the program validates the input , if the value entered is between 1 and 10 the program prints the value entered otherwise the program takes the input again , the program ends on legal values otherwise keep taking input.
Sample Program Output
Enter a number between 1 and 10 --> 56
Number is outside range 1-10. Please re-
enter
Enter a number between 1 and 10 --> 6
The number is 6
Program-05 (Simple Menu program)
#include <stdio.h> #include <conio.h> #include <iostream.h> main() {
char choice,finish;
do{ cout<<”What do you want to know “<<endl; cout<<”1-My Name”<<endl; cout<<”2-My Roll no”<<endl; choice=getch(); if(choice==’1’) cout<<”My name is ---“<<endl;
if(choice == ‘2’) cout<<”My roll number is ---“<<endl;
