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programming languages Online Quiz - 132

Description: programming languages Online Quiz - 132
Number of Questions: 20
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Tags: programming languages
Attempted 0/20 Correct 0 Score 0

class C { public static void main (String[] a1) { System.out.print(a1[1] + a1[2] + a1[3]); }} What is the result of attempting to compile and run the program? java command A B C

  1. Prints: ABC

  2. Prints BC and Runtime Exception

  3. Prints: BCD

  4. Runtime Exception

  5. None of the above


Correct Option: B

class C{ static int s; public static void main(String a[]){ C obj=new C(); obj.m1(); System.out.println(s); } void m1(); { int x=1; m2(x); System.out.println(x+""); } void m2(int x){ x=x*2; s=x; }}

  1. prints 1,2

  2. prints 2,0

  3. prints 2,2

  4. compile time error

  5. Noneofthe above


Correct Option: A

Each element must be unique Duplicate elements must not replace old elements. Elements are not key/value pairs. Accessing an element can be almost as fast as performing a similar operation on an array. Which of these classes provide the specified features?

  1. LinkedList

  2. TreeMap

  3. HashMap

  4. HashSet


Correct Option: D
  1. For loop

  2. While loop

  3. Recursion

  4. All of these


Correct Option: C

Identify the true statement.

  1. For efficient program writing, we need syntax which is not strict

  2. For efficient program writing, we need syntax which is strict

  3. For quick compiler design, syntax is strict

  4. Syntax strictness and compiler design are not related


Correct Option: C
  1. Developer

  2. Maintenance Person

  3. Both developer and maintenance person

  4. Tester


Correct Option: C
  1. Program execution

  2. END-OF-EVENT

  3. Another event keyword

  4. END-EVENT


Correct Option: C

Coding two INITIALIZATION events will cause a syntax error.

  1. True

  2. False


Correct Option: A

When creating a transparent table in the ABAP Dictionary, which step automatically creates the table in the underlying database?

  1. Adding technical settings to the table

  2. Checking the table syntax

  3. Saving the table

  4. Activating the table


Correct Option: D

A field declared as type T has the following internal representation

  1. SSMMHH

  2. HHMMSS

  3. MMHHSS

  4. HHSSMM


Correct Option: B

If you use a RUN statement with a PROC SQL step

  1. SAS ignores the RUN statement, executes the statements as usual.

  2. Stop running due to error.

  3. Executes the code with a warning note

  4. Unexpected Result.


Correct Option: A
  1. proc sql nodup; select membertype from sasuser.frequentflyers;

  2. proc sql; select distinct(membertype) as MemberType from sasuser.frequentflyers;

  3. proc sql; select unique membertype from sasuser.frequentflyers group by membertype;

  4. proc sql; select distinct membertype from sasuser.frequentflyers;


Correct Option: D

What happens if you use a GROUP BY clause in a PROC SQL step without a summary function?

  1. The step does not execute.

  2. The first numeric column is summed by default.

  3. The GROUP BY clause is changed to an ORDER BY clause.

  4. The step executes but does not group or sort data.


Correct Option: C

Which clause in the following program is incorrect? proc sql; select sex,mean(weight) as avgweight from company.employees company.health where employees.id=health.id group by sex;

  1. SELECT

  2. FROM

  3. WHERE

  4. GROUP BY


Correct Option: B

You are creating a PROC SQL query that will list all employees who have spent (or overspent) their allotted 120 hours of vacation for the current year. The hours that each employee used are stored in the existing column Spent. Your query defines a new column, Balance, to calculate each employee’s balance of vacation hours. Which query will produce the report that you want?

  1. proc sql; select name, spent, 120-spent as calculated Balance from Company.Absences where balance <= 0

  2. proc sql; select name, spent, 120-spent as Balance from Company.Absences where calculated balance <= 0;

  3. proc sql; select name, spent, 120-spent as Balance from Company.Absences where balance <= 0;

  4. proc sql; select name, spent, 120-spent as calculated Balance from Company.Absences where calculated balance <= 0;


Correct Option: B
  1. Restricts the number of rows (observations) that PROC SQL retrieves from any single source.

  2. Restricts the number of rows (observations) that PROC SQL can print.

  3. Directs the system to start reading the source from 10th observation.

  4. None of the above.


Correct Option: A
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