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programming languages Online Quiz - 203

Description: programming languages Online Quiz - 203
Number of Questions: 20
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Tags: programming languages
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These element according to COBOL programming standard need not to be vertically aligned:

  1. PICTURE clauses

  2. VALUE clauses

  3. 'TO' in the statements

  4. All COBOL verbs


Correct Option: D

COBOL stands for:

  1. Combined Business-Oriented Language

  2. Combined Business-OnLine Language

  3. Common Business-Oriented Language

  4. Common Business online Language


Correct Option: C

Which of the following APIs provides the classes and interfaces for the security framework?

  1. java.io

  2. java.rmi

  3. java.security

  4. None of the above


Correct Option: C

Which of the following is not a Java API?

  1. java.nio

  2. java.text

  3. java.xml

  4. java.io


Correct Option: C

java.sql API is used for accessing and processing data stored in a data source (usually a relational database) using the Java programming language

  1. True

  2. False


Correct Option: A

Which API provides classes that are fundamental to the design of the Java programming language?

  1. Java.lang

  2. Java.nio

  3. Java.rmi

  4. Java.basic


Correct Option: A

What does API stand for?

  1. Assignment Programming Interface

  2. Application Programming Interface

  3. Active Program Interface

  4. None of the above


Correct Option: B

This Contains all of the classes for creating user interfaces and for painting graphics and images

  1. java.lang

  2. java.util

  3. java.awt

  4. java.graphics


Correct Option: C

Which character is used to continue a statement in SQL*Plus?

  1. *

  2. /

  3. -

  4. --


Correct Option: C

Which character function can be used to return a specified portion of a character string?

  1. INSTR

  2. SUBSTRING

  3. SUBSTR

  4. POS


Correct Option: C

How many columns are presented after executing this query: SELECT address1||','||address2||','||address2 "Adress" FROM employee;

  1. 0

  2. 1

  3. 3

  4. 2


Correct Option: B

Assuming today is Monday, 10 July 2000, what is returned by this statement: SELECT to_char(NEXT_DAY(sysdate, 'MONDAY'), 'DD-MON-RR') FROM dual;

  1. 03-JUL-00

  2. 10-JUL-00

  3. 11-JUL-00

  4. 17-JUL-00


Correct Option: D

The primary key on table EMP is the EMPNO column. Which of the following statements will not use the associated index on EMPNO?

  1. select * from EMP where nvl(EMPNO, '00000') = '59384';

  2. select * from EMP where EMPNO = '59384';

  3. select EMPNO, LASTNAME from EMP where EMPNO = '59384';

  4. select 1 from EMP where EMPNO = '59834';


Correct Option: A

1 String #name = "Jane Doe"; 2 int $age = 24; 3 Double _height = 123.5; 4 double ~temp = 37.5; Which two statements are true?

  1. . Line 1 will not compile

  2. . Line 2 will not compile

  3. . Line 3 will not compile

  4. . Line 4 will not compile


Correct Option: A,D

It is recommended to overload run() in your Thread class

  1. True

  2. False


Correct Option: A

public class TestOne { public static void main (String[] args) throws Exception { Thread.sleep(3000); System.out.println("sleep"); } } What is the result?

  1. Compilation fails.

  2. An exception is thrown at runtime.

  3. The code executes normally and prints "sleep".

  4. The code executes normally, but nothing is print ed.


Correct Option: C

public static void test(String str) { if (str == null | str.length() == 0) { System.out.println("String is empty"); } else { System.out.println("String is not empty"); } } And the invocation: test(null); What is the result?

  1. An exception is thrown at runtime.

  2. "String is empty" is printed to output

  3. Compilation fails

  4. "String is not empty" is printed to output.


Correct Option: A

Which two statements are true about has-a and is-a relationships? (Choose two.)

  1. Inheritance represents an is-a relationship

  2. . Inheritance represents a has-a relationship

  3. Interfaces must be used when creating a has-a relationship

  4. Instance variables can be used when creating a has-a relationship


Correct Option: A,D

System.out.format("Pi is approximately %d.", Math.PI); What is the result?

  1. Compilation fails

  2. Pi is approximately 3

  3. Pi is approximately 3.141593

  4. An exception is thrown at runtime


Correct Option: D

Given: 1. class Ring { 2. final static int x2 = 7; 3. final static Integer x4 = 8; 4. public static void main(String[] args) { 5. Integer x1 = 5; 6. String s = "a"; 7. if(xl < 9) s += "b"; 8. switch(x1) { 9. case 5: s += "c"; 10. case x2: s += "d"; 11. case x4: s += "e"; 12. } 13. System.out.println(s); 14. } 15. } What is the result?

  1. abc

  2. abcde

  3. Compilation fails due only to an error on line 7.

  4. Compilation fails due only to an error on line 8.

  5. Compilation fails due only to an error on line 10.

  6. Compilation fails due only to an error on line 11.


Correct Option: F
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