C quiz
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The document is a quiz on C language concepts with multiple choice questions. It covers topics like who developed Unix, valid main function forms in C, the meaning of the # sign, steps involved in executing a program, data types, operators, precedence rules, input/output functions, C compiler versions, and the need for semicolons.
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![Which Of The Following Is Valid?
a. First-tag
b. char
c. char-tag
d. int_tag
What is Meaning Following Statement?
{
typedef int units;
marks name[10];
}
a. units Symbolizes int
b. units Symbolizes new data type
c. units is a varaible
d. no idea
Increment And Decrement Operator use which rule from following?
a. They Are Unary Operator
b. They Are Turnary Operators
c. They Are Binary operators
d. All of The Above
What do you mean by bitwise<<?
a. Shift right
b. Shift Left
c. left
d. right
What will be Output For Following statement ?
int value=(int x=10,int y=5,x+y);
a.10
b.15
c.20
d.50](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
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ExamName___________________________________MULTIPLE CH.docx
Exam
Name___________________________________
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
1) Analyze the following program fragment:
int x;
double d = 1.5;
switch (d) {
case 1.0: x = 1;
case 1.5: x = 2;
case 2.0: x = 3;
}
1)
A) The switch control variable cannot be double.
B) The program has a compile error because the required break statement is missing in the
switch statement.
C) The program has a compile error because the required default case is missing in the switch
statement.
D) No errors.
2) Analyze the following code:
boolean even = false;
if (even = true) {
System.out.println("It is even!");
}
2)
A) The program runs fine, but displays nothing.
B) The program runs fine and displays It is even!.
C) The program has a runtime error.
D) The program has a compile error.
3) What is the printout of the following switch statement?
char ch = 'a';
switch (ch) {
case 'a':
case 'A':
System.out.print(ch); break;
case 'b':
case 'B':
System.out.print(ch); break;
case 'c':
case 'C':
System.out.print(ch); break;
case 'd':
case 'D':
System.out.print(ch);
}
3)
A) abc B) abcd C) ab D) aa E) a
1
4) The order of the precedence (from high to low) of the operators +, *, &&, ||, & is: 4)
A) *, +, &, &&, ||
B) *, +, &&, ||, &
C) &&, ||, &, *, +
D) &, ||, &&, *, +
E) *, +, &, ||, &&
5) The statement System.out.printf("%10s", 123456) outputs ________. (Note: * represents a space) 5)
A) ****123456 B) 12345***** C) 123456**** D) 23456*****
6) The following code displays ________.
double temperature = 50;
if (temperature >= 100)
System.out.println("too hot");
else if (temperature <= 40)
System.out.println("too cold");
else
System.out.println("just right");
6)
A) too cold B) too hot
C) too hot too cold just right D) just right
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B) if (radius != 0) System.out.println(radius * radius * 3.14159);
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A) A flowchart diagram B) Java program
C) Pseudocode D) A Java statement
9) Analyze the following code:
if (x < 100) && (x > 10)
System.out.println("x is between 10 and 100");
9)
A) The statement compiles fine.
B) The statement has compile errors because (x<100) & (x > 10) must be enclosed inside
parentheses and the println(…) statement must be put inside a block.
C) The statement compiles fine, but has a runtime error.
D) The statement has compile errors because (x<100) & (x > 10) must be enclosed inside
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