The top level class in Java is class Object. Every other class inherits from Object and therefore Object is the top most in the class hierarchy.
If you extend a class from Object such as class Animal and further extend Animal with class Dog then the hierarchy is as follows:
Object
|
Animal
|
Dog
Code for this hierachy is as follows:
class Animal {
}
class Dog extends Animal {
}
We don't need to write class Animal extends Object because every class extends from Object so it does not need to be stated.
Java source files have the .java extension, compiled Java class files have the .class extension.
The actions in a java class are called methods.
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
Yes, the base class for all other Java classes is Object.
An Anonymous class in Java is one that does not have a name. It is usually created inside a class
Java source files have the .java extension, compiled Java class files have the .class extension.
The actions in a java class are called methods.
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
We can't call a class. We always call a method in java.
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).
Class
All classes in java must inherit from the Object class
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 (.)
Yes, the base class for all other Java classes is Object.
An Anonymous class in Java is one that does not have a name. It is usually created inside a class
Java created a file called class, and is identified by having the .class at the end. This file includes a Java bytecode, which then can be used on the Java Virtual Machine.
Object is the topmost class in the Java Class hierarchy. There is no Class above Object. All classes in Java are implicitly derived from Object.