Exercise: Control Instructions
Questions for: Control Instructions
The C#.NET code snippet given below generates ____ numbers series as output?
int i = 1, j = 1, val;
while (i < 25)
{
Console.Write(j + " ");
val = i + j;
j = i;
i = val;
}
A:
Prime
B:
Fibonacci
C:
Palindrome
D:
Odd
Answer: B
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Which of the following can be used to terminate a while loop and transfer control outside the loop?
- exit while
- continue
- exit statement
- break
- goto
A:
1, 3
B:
2, 4
C:
3, 5
D:
4, 5
Answer: D
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Which of the following code snippets are the correct way to determine whether a is Odd or Even?
int a; String res; if (a % 2 == 0) res = "Even"; else res = "Odd";int a; String res; if (a Mod 2 == 0) res = "Even"; else res = "Odd";int a; Console.WriteLine(a Mod 2 == 0 ? "Even": "Odd");int a; String res; a % 2 == 0 ? res = "Even" : res = "Odd"; Console.WriteLine(res);
A:
1, 3
B:
1 Only
C:
2, 3
D:
4 Only
Answer: B
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Which of the following is the incorrect form of Decision Control instruction?
A:
if (Condition1)
{// Some statement}B:
if (Condition1) {// Some statement}
else {// Some statement}C:
if (Condition1) {// Some statement}
else {// Some statement}
else if ( Condition2){//Some statement}D:
if ( Condition1 ) {// Some statement}
else if ( Condition2 ) {// Some statement}
else {// Some statement}
Answer: C
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What will be the output of the C#.NET code snippet given below?
char ch = Convert.ToChar ('a' | 'b' | 'c');
switch (ch)
{
case 'A':
case 'a':
Console.WriteLine ("case A | case a");
break;
case 'B':
case 'b':
Console.WriteLine ("case B | case b");
break;
case 'C':
case 'c':
case 'D':
case 'd':
Console.WriteLine ("case D | case d");
break;
}
A:
case A | case a
B:
case B | case b
C:
case D | case d
D:
Compile Error
Answer: C
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