Thursday 9 November 2017

Switch Case Questions in C

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6.
Find the output?

#include
    void main()
    {
        char *ch;
        printf("enter a value btw 1 to 3:");
        scanf("%s", ch);
        switch (ch)
        {
        case "1":
            printf("1");
            break;
        case "2":
            printf("2");
            break;
        }
    }

A. 1
B. Compile time error
C. 2
D. Run time error

Answer: B
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7.
Find the output of the program?

Put input as '2'.

#include
    void main()
    {
        int ch;
        printf("enter a value btw 1 to 2:");
        scanf("%d", &ch);
        switch (ch)
        {
        case 1:
            printf("1\n");
            break;
            printf("hi");
        default:
            printf("2\n");
        }
    }

A. 1
B. hi 2
C. Run time error
D. 2

Answer: D
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8.
Find the output of this program?
#include
    void main()
    {
        int ch;
        printf("enter a value btw 1 to 2:");
        scanf("%d", &ch);
        switch (ch, ch + 1)
        {
        case 1:
            printf("1\n");
            break;
        case 2:
            printf("2");
            break;
        }
    }

A. 1
B. 2
C. 3
D. None

Answer: B
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9.
Find the output?

#include
    int main()
    {
        int x = 97;
        switch (x)
        {
        case 'a':
            printf("yes ");
            break;
        case 97:
            printf("no\n");
            break;
        }
    }

A. yes
B. yes no
C. Duplicate case value error
D. Character case value error

Answer: C
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10.
Find the output?

#include
    #define max(a) a
    int main()
    {
        int x = 1;
        switch (x)
        {
        case max(2):
            printf("yes\n");
        case max(1):
            printf("no\n");
            break;
        }
    }

A. yes no
B. yes
C. no
D. Compile time error

Answer: C
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More Imp Topics:

Data Types       
Operators
Pointers
Array
Preprocessor
Structures
Control Structures
Switch Case

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