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What is the difference between environment and platform?
It's just like 'Java Class, and 'Class Room'. In a 'Java Class', the faculty have to teach only java related topics. And the students in the class must belongs to 'Java' subject. Means it is specific for 'Java' only.i.e., A Platform is a specific one where all the functionality are predefined. Where as, a 'Class Room' is a Generic one where java/.net/php/flex, N-number of classes can be conducted. Like wise, an Environment is a generic one where the needs for platform is provided.
Extension file for Java?
Java source files have the .java extension, compiled Java class files have the .class extension.
What is immediate super class of runtime exception?
If you mean Java's RuntimeException class, its parent class is java.lang.Exception
What do you mean by extending classes in java?
That's the name used in Java for inheritance. It means that one class has all the behavior of another class; additional functionality can be added to the derived class.
What are the constructor method of integer class?
If you mean Java, you can get the documentation for the Integer class (with an uppercase "I") here: http://docs.oracle.com/javase/1.4.2/docs/api/java/lang/Integer.html
The actions in a java class are called?
The actions in a java class are called methods.
Why you start java program by class?
without class non of the folder can run so the java program should start in class we can use the class without object in java
When java uses compiler?
What i know is java we will use compiler when it want to get class file(file with .class extension) from java file(file with .java extension).
How do you call main class with in main class in java?
We can't call a class. We always call a method in java.
What class begins java class hierarchy?
Class
What is the way to get rid of Java lang no class deffound error?
To get rid of the Java lang no class deffound error, one must add the class or .jar file which contains this class into the Java classpath. When a Java class is run from the command line, one must add a dot (.)
The top most class in java?
All classes in java must inherit from the Object class
