Tag: programming languages

Questions Related to programming languages

Multiple choice technology programming languages

Given: class Circus { public static void main(String[] args) { int x = 9; int y = 6; for(int z = 0; z < 6; z++, y--) { if(x > 2) x--; label: if(x > 5) { System.out.print(x + " "}; --X; continue label; } X--; } } } What is the result?

8
8 7
8 7 6
Compilation fails
An exception is thrown at runtime

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Multiple choice technology programming languages

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?

abc
abcde
Compilation fails due only to an error on line 7.
Compilation fails due only to an error on line 8.
Compilation fails due only to an error on line 10.
Compilation fails due only to an error on line 11.

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Multiple choice technology programming languages

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

Compilation fails
Pi is approximately 3
Pi is approximately 3.141593
An exception is thrown at runtime

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Multiple choice technology programming languages

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

Inheritance represents an is-a relationship
. Inheritance represents a has-a relationship
Interfaces must be used when creating a has-a relationship
Instance variables can be used when creating a has-a relationship

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Multiple choice technology programming languages

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?

An exception is thrown at runtime.
"String is empty" is printed to output
Compilation fails
"String is not empty" is printed to output.

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Multiple choice technology programming languages

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

Compilation fails.
An exception is thrown at runtime.
The code executes normally and prints "sleep".
The code executes normally, but nothing is print ed.

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Multiple choice technology programming languages

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

True
False

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Multiple choice technology programming languages

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

. Line 1 will not compile
. Line 2 will not compile
. Line 3 will not compile
. Line 4 will not compile

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Multiple choice technology programming languages

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

select * from EMP where nvl(EMPNO, '00000') = '59384';
select * from EMP where EMPNO = '59384';
select EMPNO, LASTNAME from EMP where EMPNO = '59384';
select 1 from EMP where EMPNO = '59834';

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Multiple choice technology programming languages

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;

03-JUL-00
10-JUL-00
11-JUL-00
17-JUL-00

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