Can a class be declared as protected?

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List the three steps for creating an object for a class?

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What is the java idl system?

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Which class is the superclass for all the classes?

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What is difference between array and arraylist in java?

0 Answers  

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What is a reflection package?

2 Answers  

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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

4 Answers   TCS,

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What is a void return type?

6 Answers  

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What is casting?

3 Answers  

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What are packages and name a few?

4 Answers  

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what are the boundaries of jdk and jre?

0 Answers   CoreObjects,

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What is an abstract class and abstract method?

5 Answers  

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