Programming languages | Practice Questions

Multiple choice technology programming languages

What is the use of %INCLUDE statement in a program?

Includes external files
Includes SAS datasets
Includes variables from other datasets
All of the above

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Multiple choice technology programming languages

What is the SAS data value of 01-Jan-1960?

21916
1
0
None of the above

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Multiple choice technology programming languages

How many variables will be there in the output dataset totmark? Data totmark; Set scores (keep=name mark1 mark2 ); Total = mark1 + mark2; Drop mark1 mark2; Run;

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Multiple choice technology programming languages

State which of the following statement(s) are correct regarding Proc SQL?

In simple index, the index name must be same as the column name.
The values must be in sorted form
Indexing helps to retrieve the data faster
All of the above

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Multiple choice technology programming languages

char* riteshFunc (char *ptr) { ptr += 3; return (ptr); } int main() { char *x, *y; x = "HELLO"; y = riteshFunc(x); printf ("y = %s \n", y); return 0; } What will print when the sample code above is executed?

HELLO
ELLO
LLO
LO

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Multiple choice technology programming languages

What will be the result of compiling and running the following code? (Assume that assertions are enabled at compile time as well as at runtime.) class Test { String f(int i) { switch (i) { case 0: return "A"; case 1: return "B"; case 2: return "C"; default: assert false; } } public static void main(String[] args) { Test t = new Test(); for (int i = 0; i < 4; i++) { System.out.print(t.f(i)); } } }

Prints "ABC" and throws AssertionError
Prints "ABC" and throws AssertionException
Prints "ABC" and exits without any error
Compilation error
Run time exception
None of the above

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Multiple choice technology programming languages

Given the code below, which access modifiers (public, protected, or private) can legally be placed before the myMethod() method on line 3, if no other changes are made to the code? If line 3 is left as it is, which keywords can legally be placed before the myMethod method on line 8? 1. class HumptyDumpty 2. { 3. void myMethod() {} 4. } 5. 6. class HankyPanky extends HumptyDumpty 7. { 8. void myMethod() {} 9. }

. private or nothing (default) on line 3. Nothing (default) or protected or public on line 8.
public or protected on line 3. private or nothing (default) on line 8.
Nothing (default) or protected or public on line 3. private or nothing (default) on line 8.
public on line 3 and private on line8.

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Multiple choice technology programming languages

Which is the most appropriate way to handle invalid method arguments passed to a public method?

Throw AssertionError
Throw IllegalStateException
Throw IllegalArgumentException
Throw InvalidArgumentException

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Multiple choice technology programming languages

What will be printed on standard output if the following class is executed using the command "java Test 1 two 3" ? public class Test { static public void main(String[] args) { try { int k = Integer.parseInt(args[1]); System.out.println(args[k]); } catch (Exception e) { System.out.println(e); } } }

1
two
NumberFormatException
ArrayIndexOutOfBoundsException
Code does not compile

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Multiple choice technology programming languages

What will be the result of compiling and running the following code? public class MyThread extends Thread { public static void main(String[] args) { new MyThread().start(); } }

Compile-time error
Runtime error
No output
None of these

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