Php
Classes
p9 ! In Java, everything goes into a class, in a file with .java extension. After compilation a new file with .class extension will be created.
RunCode
/**
* App.java
*
* The main() method is where your program starts running.
* The return type void means there is no returned value.
* Every statement must end in semicolon.
*/
class App {
public static void main(String[] args) {
System.out.println("Hello Java!"); // Hello Java!
}
}
Object
p35 A class is a blueprint for an object. Fields (instance variables) is what an object knows, methods is what an object does. RunCode
class LearningApp {
public static void main(String[] args) {
MyClass obj = new MyClass();
obj.setName("John");
System.out.println("Hello " + obj.name); // Hello John
}
}
class MyClass {
public String name;
public void setName(String name) {
this.name = name;
}
}
... 13 lines˄˄˄➥ Questions
CARD
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