Tag: technology

Quizzes (307) Questions (36705)

Questions Related to technology

Multiple choice technology programming languages

Given that bw is a reference to a valid BufferedWriter And the snippet: 15. BufferedWriter b1 = new BufferedWriter(new File("f")); 16. BufferedWriter b2 = new BufferedWriter(new FileWriter("f1")); 17. BufferedWriter b3 = new BufferedWriter(new PrintWriter("f2")); 18. BufferedWriter b4 = new BufferedWriter(new BufferedWriter(bw)); What is the result?

  1. Compilation succeeds

  2. Compilation fails due only to an error on line 15

  3. Compilation fails due only to an error on line 16

  4. Compilation fails due only to an error on line 17

  5. Compilation fails due only to an error on line 18

  6. Compilation fails due to errors on multiple lines
Reveal answer Fill a bubble to check yourself
B Correct answer
Full explanation
Multiple choice technology programming languages

Given: 1. import java.text.*; 2. class DateOne { 3. public static void main(String[] args) { 4. Date d = new Date(1123631685981L); 5. DateFormat df = new DateFormat(); 6. System.out.println(df.format(d)); 7. } 8. } And given that 1123631685981L is the number of milliseconds between Jan. 1, 1970, and sometime on Aug. 9, 2005, what is the result? (Note: the time of day in option A may vary.)

  1. 8/9/05 5:54 PM

  2. 1123631685981L

  3. An exception is thrown at runtime.

  4. Compilation fails due to a single error in the code.

  5. Compilation fails due to multiple errors in the code.
Reveal answer Fill a bubble to check yourself
E Correct answer
Full explanation
Multiple choice technology databases

Which of the following queries return the names of programs (without duplication) defined in the currently-connected schema whose source contains a call to DBMS_OUTPUT.PUT_LINE (assume that this program name does not appear inside comments)?

  1. SELECT name FROM USER_DEPENDENCIES WHERE referenced_name = 'DBMS_OUTPUT.PUT_LINE'

  2. SELECT name from ALL_SOURCE WHERE owner = USER AND name = 'DBMS_OUTPUT.PUT_LINE'

  3. SELECT DISTINCT name from ALL_SOURCE WHERE INSTR (text, 'DBMS_OUTPUT.PUT_LINE') > 0

  4. SELECT DISTINCT name from USER_SOURCE WHERE INSTR (UPPER (text), 'DBMS_OUTPUT.PUT_LINE') > 0
Reveal answer Fill a bubble to check yourself
D Correct answer
Full explanation