Jump statements: break, continue, goto, return — C++ MCQs

1. What will be the output of this code?
for(int i = 1; i <= 5; i++) {
if(i == 3) break;
cout << i;
}
(A) 1 2
(B) 1 2 3
(C) 1 2 3 4 5
(D) Error

2. What will the code print?
for(int i = 1; i <= 5; i++) {
if(i == 3) continue;
cout << i;
}
(A) 1 2 3 4 5
(B) 1 2 4 5
(C) 3 4 5
(D) 1 2

3. What is the output?
int i = 0;
while(i < 5) {
if(i == 2) break;
cout << i;
i++;
}
(A) 0 1
(B) 0 1 2
(C) 1 2 3
(D) 0

4. What happens when the following code runs?
int i = 0;
while(i < 5) {
i++;
if(i == 3) continue;
cout << i;
}
(A) 1 2 3 4 5
(B) 1 3 5
(C) 2 4
(D) 1 2 4 5

5. What will be printed?
for(int i = 1; i <= 3; i++) {
for(int j = 1; j <= 3; j++) {
if(j == 2) break;
cout << j;
}
}
(A) 121
(B) 123
(C) 111
(D) 111

6. Output of this program:
int i = 1;
while(i <= 5) {
if(i == 4) break;
cout << i;
i++;
}
(A) 1 2 3
(B) 4 5
(C) 1 2 3 4
(D) Infinite loop

7. What happens when this code runs?
int i = 0;
do {
if(i == 2) break;
cout << i;
i++;
} while(i < 5);
(A) 0 1
(B) 0 1 2
(C) 1 2 3
(D) 2 3 4

8. What is the output of this loop?
for(int i = 1; i <= 4; i++) {
if(i == 3) continue;
cout << i;
}
(A) 1 2 3 4
(B) 1 2 4
(C) 2 3 4
(D) 3 4

9. What will be printed?
int i = 1;
while(i <= 5) {
if(i == 2) {
i++;
continue;
}
cout << i;
i++;
}
(A) 1 2 3 4 5
(B) Error
(C) 1 2 4
(D) 1 3 4 5

10. What is the output?
for(int i = 1; i <= 5; i++) {
if(i == 4) return 0;
cout << i;
}
(A) 1 2 3 4 5
(B) 1 2 3
(C) Error
(D) 1 2

11. What will happen in this code?
for(int i = 1; i <= 5; i++) {
if(i == 6) return 0;
cout << i;
}
(A) 1 2 3 4 5
(B) Infinite loop
(C) No output
(D) Error

12. What is the result of this program?
int i = 1;
while(i <= 3) {
if(i == 2) goto end;
cout << i;
i++;
}
end:
cout << "Done";
(A) Done
(B) 1 2 Done
(C) 1Done
(D) Error

13. What happens here?
int x = 1;
label:
cout << x;
x++;
if(x <= 3) goto label;
(A) Infinite loop
(B) 12
(C) 1
(D) 123

14. What will the output be?
int i = 1;
while(i <= 5) {
if(i == 3) goto end;
cout << i;
i++;
}
end:
cout << "Stop";
(A) 12Stop
(B) 123Stop
(C) Stop
(D) 1Stop

15. Output of this code:
int i = 1;
do {
if(i == 2) goto label;
cout << i;
i++;
} while(i < 4);
label:
cout << "End";
(A) End
(B) 12End
(C) 1End
(D) Error

16. What is printed?
int i = 1;
do {
cout << i;
if(i == 2) break;
i++;
} while(i <= 4);
(A) Infinite loop
(B) 1 2 3 4
(C) 1 2 3
(D) 1 2

17. What will the program print?
for(int i = 1; i <= 5; i++) {
if(i == 3) continue;
if(i == 5) break;
cout << i;
}
(A) 1 2
(B) 1 2 3 4
(C) 1 2 4
(D) 1 2 4 5

18. What will be displayed?
int x = 0;
while(x < 5) {
if(x == 3) goto end;
cout << x;
x++;
}
end:
cout << "Done";
(A) 012Done
(B) 0123Done
(C) 01Done
(D) Done

19. What happens in this program?
int i = 1;
while(i <= 5) {
if(i == 3) break;
cout << i;
i++;
}
cout << i;
(A) 12
(B) 123
(C) 1234
(D) 12345

20. What will the output be?
for(int i = 1; i <= 5; i++) {
if(i == 4) break;
cout << i;
}
(A) 1 2 3
(B) 1 2
(C) 1 2 3 4
(D) 4 5

21. Output of this program:
int i = 1;
while(i <= 5) {
if(i == 2) { i++; continue; }
cout << i;
i++;
}
(A) 1 2 3 4 5
(B) 1 3 4 5
(C) 2 3 4
(D) 3 4

22. What will happen in this code?
int x = 5;
if(x > 0) return 0;
cout << "Hello";
(A) Prints Hello
(B) No output
(C) Infinite loop
(D) Error

23. What is the output?
for(int i = 1; i <= 5; i++) {
if(i == 2) goto label;
cout << i;
}
label:
cout << "End";
(A) 1End
(B) 12End
(C) 1 2 3 4 5
(D) End

24. What will the following print?
int i = 1;
label:
cout << i;
i++;
if(i <= 3) goto label;
(A) Error
(B) 1 2
(C) 1 2 3 4
(D) 1 2 3

25. Identify the output:
for(int i = 0; i < 3; i++) {
for(int j = 0; j < 3; j++) {
if(j == 1) continue;
cout << j;
}
}
(A) 010101
(B) 002211
(C) 020202
(D) 020202

26. What happens?
int i = 1;
do {
if(i == 3) continue;
cout << i;
i++;
} while(i <= 5);
(A) 1 2
(B) Infinite loop
(C) 1 2 4 5
(D) 1 3 5

27. What is the result?
for(int i = 1; i <= 4; i++) {
if(i == 2) continue;
if(i == 3) break;
cout << i;
}
(A) 1
(B) 1 2
(C) 1 3
(D) 1 2 3

28. What will be the output?
int i = 0;
while(i < 5) {
i++;
if(i == 4) goto end;
cout << i;
}
end:
cout << "Stop";
(A) 1 2Stop
(B) 1234Stop
(C) Stop
(D) 1 2 3Stop

29. What happens?
for(int i = 1; i <= 3; i++) {
if(i == 2) goto label;
cout << i;
}
label:
cout << "X";
(A) 1X
(B) 12X
(C) X
(D) Error

30. What will print?
int i = 1;
do {
cout << i;
if(i == 2) break;
i++;
} while(i < 4);
(A) 12
(B) 1 2 3
(C) 1 3
(D) Error