What main integer types are offered by C⁺⁺?

What values will be assigned to the variables ua, ub, uc and fail after the execution of the following program segment:

void main() {

int i = 0,ua = 0,ub = 0,uc = 0,fai l= 0;

while(i<=5)

{

switch(i⁺⁺)

{ case 1:

case 2: ++ua;

case 3:

case 4: ++ub;

case 5: ++uc;

default: ++fai;

} //switch

} //while

cout<<ua<<end1;

cout<<ub<<end1;

cout<<uc<<end1;

cout<<fail<<end1;

}

Find out the errors, if any, in the following C⁺⁺ statement:

(i)  cout<<” = “a;

(ii)  m = 5, n = 12; o = 15

(iii)  cout<<“x”;<>y;>>j;

(v)  cin>>”\n”>>y; 

(vi)  cout>>”\n “abc”;

(vii)  a = b + c

(viii)  break = x*y;

How do the following two statements differ in operation?

cin>>ch;

cin.get(ch);

Identify the possible error(s) in the following code fragment. Discuss the reason(s) of error(s) and correct the code:

cin>>i>>j;

while(i<j)

 cout<,i*j;

i⁺⁺;

Briefly describe the importance of iostream.h file. 

Rewrite the following program after removing all the syntactical error(s), if any. Underline each correction.

#include <iostream.h>

void main() {

One=10,Two=20;

Callme(One;Two);

Callme(Two);

}

void Callme(int Arg1,int Arg2=20)

{ 

Arg1=Arg1+Arg2

cout<<Arg1<<Arg2;

}

Rewrite the following program after removing all the syntactical error(s), if any. Underline each correction.

#include <iostream.h>

void main() {

Present=25,Past=35;

Assign(Present;Past);

Assign(Past);

}

 void Assign(int Default1,Default2=30)

{

Default1=Default1+Default2;

cout<<Default1>>Default2;

}

Explain the impact of access modifier const over variables. Support your answer with examples. 

What do you understand by default arguments and constant argument? Write a short note on their usefulness.