1.java learning the syntax definitions and considerations interface
According courses Case:
package inter;
Interface {class
public static void main (String [] args) {
A = A new new B ();
a.method1 ();
a.method2 ();
a.method3 ();
}
}
interface A {
void the method1 ();
method2 void ();
void the method3 ();
}
// class can be inherited, the interface may be implemented
class B the implements A {
public void the method1 () {
System.out.println ( "first");
}
public void method2 ( ) {
System.out.println ( "second");
}
public void the method3 () {
System.out.println ( "third");
}
}
:( problems encountered in practice can only find and solve problems) to save it first, re-run.
2.html studied box model (e.g.: auto hidden visible), clipping the background, and a positioning.
3. Program: java base class libraries, learning and exception handling, and complete CSS based on practice.