assignment
DESCRIPTION
ggTRANSCRIPT
ASSIGNMENT : C++ PROGRAMMING
QUESTIONS
1. Who is written C++
Bjarne Stroustrup
Bjarne Stroustrup is a Danish computer scientist, most notable for the creation and development of the widely used C++ programming language. He is a Distinguished Research Professor and holdsAt the College of Engineering Chair in Computer Science at Texas A&M University, a visiting professor at Columbia University, and works at Morgan Stanley. Born at December 30, 1950 (age 64), Aarhus, Denmark. Education learning at Aarhus University, Churchill College, Cambridge, University
of Cambridge. Live at New York City, New York, United States. Has been reward a Grace Murray Hopper Award.
2. State statement below and give an example application in C++ program.a) Go to
A go to statement provides an unconditional jump from the go to a labelled statement in the same function.
#include <iostream>
using namespace std;
int main ()
{
// Local variable declaration:
int a = 10;
// do loop execution
LOOP:do
{
if( a == 15)
{
// skip the iteration.
a = a + 1;
goto LOOP;
}
cout << "value of a: " << a << endl;
a = a + 1;
}while( a < 20 );
return 0;
}
b) WHILE A while loop statement repeatedly executes a target statement as long
as a given condition is true.
#include <iostream>
using namespace std;
int main ()
{
// Local variable declaration:
int a = 10;
// while loop execution
while( a < 20 )
{
cout << "value of a: " << a << endl;
a++;
}
return 0;
}
c) BREAK AND CONTINUE
I. CONTINUE The continue statement works somewhat like the break statement. Instead
of forcing termination, however, continue forces the next iteration of the loop to take place, skipping any code in between.
#include <iostream>
using namespace std;
int main ()
{
// Local variable declaration:
int a = 10;
// do loop execution
do
{
if( a == 15)
{
// skip the iteration.
a = a + 1;
continue;
}
cout << "value of a: " << a << endl;
a = a + 1;
}while( a < 20 );
return 0;
}
II. BREAK
The break statement has the following two usages in C++:
When the break statement is encountered inside a loop, the loop is immediately terminated and program control resumes at the next statement following the loop.
It can be used to terminate a case in the switch statement (covered in the next chapter).
If you are using nested loops (i.e., one loop inside another loop), the break statement will stop the execution of the innermost loop and start executing the next line of code after the block.
#include <iostream>
using namespace std;
int main ()
{
// Local variable declaration:
int a = 10;
// do loop execution
do
{
cout << "value of a: " << a << endl;
a = a + 1;
if( a > 15)
{
// terminate the loop
break;
}
}while( a < 20 );
return 0;
}
d) WHILE TRUEunconditional loop
while( true ) {doSomething();if( condition() ) {break;}doSomethingElse();}
e) DO / WHILE Unlike for and while loops, which test the loop condition at the top of the
loop, the do...while loop checks its condition at the bottom of the loop.
A do...while loop is similar to a while loop, except that a do...while loop is guaranteed to execute at least one time.
The syntax of a do...while loop in C++ is:
// continue_statement.cpp#include <stdio.h>int main(){int i = 0;do{i++;printf_s("before the continue\n");continue;printf("after the continue, should never print\n");} while (i < 3);
printf_s("after the do loop\n");}
f) JUMP / LOOPA C++ jump statement performs an immediate local transfer of control.
break;continue;return [expression];goto identifier;
g) IF / ELSEAn if statement can be followed by an optional else statement, which executes
when the boolean expression is false.
The syntax of an if...else statement in C++ is:
if(boolean_expression)
{
// statement(s) will execute if the boolean expression is true
}
else
{
// statement(s) will execute if the boolean expression is false
}