Tag: programming languages

Questions Related to programming languages

Which two of the following orders are used in ORDER BY clauses?
technology programming languages

  1. ABS

  2. ASC

  3. DESC

  4. DISC

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Correct Option: B,C

The default character for specifying runtime variables in SELECT statements is
technology programming languages

  1. Ampersand

  2. Ellipses

  3. Quotation marks

  4. Asterisk

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Correct Option: A

Which of the following is not a group function?
technology programming languages

  1. avg( )

  2. sqrt( )

  3. sum( )

  4. max( )

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Correct Option: B

The appropriate table to use when performing arithmetic calculations on values defined within the SELECT statement (not pulled from a table column) is
technology programming languages

  1. EMP

  2. The table containing the column values

  3. DUAL

  4. An Oracle-defined table

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Correct Option: C

A monitor called nik has 3 threads, having same priority, in its waiting pool; How can we notify one of the threads, named 'thread1' to move from Waiting state to Ready
technology programming languages

  1. Execute notify(thread1); from within synchronized code of mon.

  2. Execute mon.notify(thread1); from synchronized code of any object.

  3. Execute thread1.notify(); from synchronized code of any object.

  4. Execute thread1.notify(); from any code(synchronized or not) of any object.

  5. You cannot specify which thread will get notified.

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Correct Option: E

What of the following fails to cause a thread stop executing ?
technology programming languages

  1. The program exits via a call to System.exit(0);

  2. Another thread is given a higher priority.

  3. A call to the thread's stop method.

  4. A call to the halt method of the Thread class.

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Correct Option: D

A monitor called nik has 3 threads, having same priority, in its waiting pool; How can we notify one of the threads, named 'thread1' to move from Waiting state to Ready State?
technology programming languages

  1. Execute notify(thread1); from within synchronized code of mon.

  2. Execute mon.notify(thread1); from synchronized code of any object.

  3. Execute thread1.notify(); from synchronized code of any object.

  4. Execute thread1.notify(); from any code(synchronized or not) of any object.

  5. You cannot specify which thread will get notified.

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Correct Option: E

What of the following fails to cause a thread stop executing ?
technology programming languages

  1. The program exits via a call to System.exit(0);

  2. Another thread is given a higher priority.

  3. A call to the thread's stop method.

  4. A call to the halt method of the Thread class.

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Correct Option: D

Program output : package com.collection.examples; import java.util.HashSet; public class HashSetExample { public static void main(String[] args) { HashSet s = new HashSet();//1 for(short i = 0; i<100;i++){ //2 s.add(i); //3 s.remove(i-1); //4 } System.out.println(s.size()); //5 } }
technology programming languages

  1. NumberFormat Exception

  2. 100

  3. Compilation fails at line 4

  4. 99

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Correct Option: B

Which of the following options is true for the following program: try { if (choice) { while (true) } else { system .exit(1): } }finally { codetocleanup(); }
technology programming languages

  1. Runtime Exception

  2. finally block will be executed

  3. finally block will not be executed

  4. Compilation error in else block

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Correct Option: C