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String s1=s+"World";
S.O.P(s1); means printing "HelloWorld".How ?">Strings are immutable.But String s="Hello"; String s1=s+"World"; S.O.P(s1); means printing "HelloWorld".How ?
Amit Khaware
- Jun 17th, 2011
String s = "Hello"; means one object with value "Hello" will be created in the heap and reference variable s will refer to the object.but whenString s1 = s+"World";w...
talktoatish
- Aug 15th, 2009
Very tricky question.Asked me in Oracle interview for 4 years level of expHere is the answer: When JVM see the code where two three string objects has been added with + operator then it is using the S...
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If we have two public classes in a single java file ,how i have to give the name of the particular java file and how i can compile it?
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What is class variables and instance variables?
sujatham
- Aug 11th, 2007
Class variable:? 1. Also called as static variable.2. Variable declared?in the class with static modifier.3. These variables are belong to the class.Instance variable:? 1. Variables declared in the class?without?the static modifier.2. These variables are belongs to the objects.
Tafazzul hasan
- Feb 21st, 2007
Class variables belongs to a Classwhere as an instance variable belongs to an Object. A class variable is shared by all the objects of the class. where as every object contain their own instance variable.
