Lab Manual IV (1).pdf on C++ Programming practice

Pre and Post Practice #include<iostream.h> #include<conio.h> void main() { int a,b,c; a=b=2; ++a; a++; a++; cout<<a; getch(); } #include<iostream.h> #include<conio.h> void main() { int a,b,c; a=2; b=2; ++b; b++; a++; a++; cout<<a<<b; getch(); } Output of a Output of a b

Pre and Post Practice #include<iostream.h> #include<conio.h> void main() { int a,b,c; a=b=8; --a; a--; --a; a--; cout<<a; getch(); } #include<iostream.h> #include<conio.h> void main() { int a,b,c; a=4; b=4; --b; b--; a--; a--; cout<<a<<b; getch(); } Output of a Output of a b

Use of Unary Operators with cout Output as 4 5 Output as 4 5 Output as 4 5

Pre and Post Practice #include<iostream.h> #include<conio.h> void main() { int a,b,c; a=b=8; cout<<--a; cout<<--a; cout<<a--; cout<<a; getch(); } #include<iostream.h> #include<conio.h> void main() { int a,b,c; a=4; b=4; cout<<b--; cout<<b--; cout<<b--; cout<<b; getch(); }

Pre and Post Practice #include<iostream.h> #include<conio.h> void main() { int a,b,c; a=b=8; cout<<--a; cout<<a--; cout<<a--; cout<<a--; getch(); } #include<iostream.h> #include<conio.h> void main() { int a,b,c; a=4; b=4; cout<<b--; cout<<b; cout<<b--; cout<<++b; cout<<b; getch(); }

Pre and Post Practice #include<iostream.h> #include<conio.h> void main() { int a,b,c; a=b=8; --a; a++; cout<<a--; cout<<--a; getch(); } #include<iostream.h> #include<conio.h> void main() { int a,b,c; a=4; b=4; b--; b++; b--; cout<<++b; cout<<b--; cout<<b getch(); }

Unary Practice with Assignment statement

Use of Unary Operators into = statement Output as c=4 d=5 Output as c=4 d=5 Output as c=4 d=5 b=6

Use of Unary Operators in = statement Output as D=8 E=11 A=12 Output as D=8 E=11 A=12 B=7

Pre and Post Practice #include<iostream.h> #include<conio.h> void main() { int a,b,c; a=b=8; a = b++; a = a+2; ++a; b = a++; cout<<a<<b; getch(); } #include<iostream.h> #include<conio.h> void main() { int a,b,c; a=b=8; b = ++b; a = a++; a--; b = --a; cout<<a<<b++; getch(); }

Pre and Post into Expression #include<iostream.h> #include<conio.h> void main() { int a,b,c; a=b=8; c = a + ++a + ++a; cout<<a<<c; getch(); } #include<iostream.h> #include<conio.h> void main() { int a,b,c; c = ++b + --b + b++; cout<<b<<c; getch(); }

Pre and Post Expression #include<iostream.h> #include<conio.h> void main() { int a,b,c; a=b=8; a = b + ++a + ++b; cout<<a<<b; getch(); } #include<iostream.h> #include<conio.h> void main() { int a,b,c; a=b=c=4; a = ++a + --a + b++; cout<<a<<b; getch(); }

Pre and Post Expression } #include<iostream.h> #include<conio.h> void main() { int a,b,c; a=b=c=4; a = ++a + --a + b++; } #include<iostream.h> #include<conio.h> void main() { int a,b,c; a=2; b=1; a = ++b + a++; b= b + ++a - ++b; cout<<a<<b; getch(); b = a-- + a-- + ++b + b; cout<<a++<<b++; cout<<a<<b; getch();

Transform Expression into C++ Format Mathematics Operator in C++ Example + + 2+4 =6 - - 4-2 = 2 X * 2*3 =6 / 4/2 = 2 % (Percentage) % (Remaining) 10%2 = 0 32 3*3 or 3^3 or Power (3,2) 2^3 = 8 Sqrt (9) Sqrt (9) = 3

Transform Expression into C++ Format Mathematics C++ Format 2+3+4 2+3+4 2-6-5 2-6-5 2X3 2*3 4/2 4%2 4%2 32 3*3 Sqrt (9)

Transform Expression into C++ Format Mathematics Exp C++ Exp 2*3+4*10/2 3X6-33+7 3*6-(3*3*3)+7 32 Power (3,2) 3*5-Sqrt (9) + (3^2)

Transform Expression into C++ Program Mathematics C++ 2*3+4*10/2 #include<iostream.h> #include<conio.h> void main ( ) { int a,b,c,d,e, ans; a=2; b=3; c=4; d=10; e=2; ans= a*b+c*d/e; cout<<“answer=“<<ans; getch(); }

Transform Expression into C++ Program Mathematics C++ 3X6-33+7 3*6-(3*3*3)+7 #include<iostream.h> #include<conio.h> void main ( ) { int a,b,c,d,e, ans; a=3; b=6; c=7; exp= a*b-(a*a*a)+c; cout<<“answer=“<<exp; getch(); }

Transform Expression into C++ Program Mathematics C++ 3*5-Sqrt (9) + (3^2) #include<iostream.h> #include<conio.h> #include<math.h> void main ( ) { int a,b,c,d,e, ans; a=3; b=5; c=9; d=3; e=2; exp= a*b-sqrt(c)+ (d^2); cout<<“answer=“<<exp; getch(); }

Operator Precedence Read expression from Left to Right 1. ( ) 2 * , /, % 3 + , -

Solve Expression using Operator Precedence Question Output 2 + 3 * 4 / 2+10 ? ( ( 2 + 3 ) * 4 / 2 + 10 ) ? 2 + 4 – 3 * 2 / 2 -10 % 2 + power(2,5) ? ( ( (5*(2+4) %2 )+10 )- sqrt (49) ) ? (3 * 2 / 2 -10 % 2 + (5^2) ) ?

Solve Binary Operators in Expression Output as 5 Output as -3

Variable as a Constant Output as a=5 p=5 Output as a=5 p=5

Constant Variable Value not Change DEVC++ Output as a=5 p=5 DEVC++ Output as -15.6

Input Value at Run Time Screen  If we want to input value at run time cout<<a; cin>>a; cout<<a<<b<<c; cin>>a>>b>>c;

Input at Runtime Screen Using Turbo C++ a=5 Runtime screen 5 //input value & press enter a=5 Runtime screen 10 //input value & press enter a=10

Message before Input at Runtime Screen

Lab Manual IV (1).pdf on C++ Programming practice

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Lab Manual IV (1).pdf on C++ Programming practice