Explain the relationship between the Canvas and Graphics
class?
- 1 Answers
- 4394 Views
- I also Faced
- E-Mail Answers
Answer / amit singh(mca ,niet,grnoida)
relation between Canvas class and Graphics class is that
trugh paint() method Canvas object provides access to a
Graphics object via its paint()
| Is This Answer Correct ? | 3 Yes | 0 No |
What is serialversionuid?
Can inner class be public in java?
What is meant by Servelet? What are the parameters of service method?
Why do we need hashmap in java?
33. try { 34. // some code here 35. } catch (NullPointerException e1) { 36. System.out.print(”a”); 37. } catch (RuntimeException e2) { 38. System.out.print(”b”); 39. } finally { 40. System.out.print(”c”); 41. } What is the result if a NullPointerException occurs on line 34? 1 c 2 a 3 ab 4 ac
public class AboutStrings{ public static void main(String args[]){ String s1="hello"; String s2="hel"; String s3="lo"; String s4=s2+s3; //to know the hash codes of s1,s4. System.out.println(s1.hashCode()); System.out.println(s4.hashCode()); // these two s1 and s4 are having same hashcodes. if(s1==s4){ System.out.println("s1 and s4 are same."); }else System.out.println("s1 and s4 are not same."); } } Somebody told me that, == operator compares references of the objects. In the above example even though s1 and s4 are refering to same object(having same hash codes), it is printing s1 and s4 are not same. Can anybody explain in detail why it is behaving like this? Thanks in Advance RavuriVinod
What are the different types of inheritance in java?
How are this() and super() used with constructors?
what is check p object in java
What is the maximum size of a string in java?
Which package is imported by default?
How list contains works in java?
Core Java 
