java 接口

1. 接口中错误语法

// Illegal modifier for the interface SomeInterface; ........................only public & abstract are permitted
// Illegal modifier for the interface field SomeInterface.someField; only public, static & final are permitted
// Illegal modifier for the interface method someMethod; ..............only public & abstract are permitted

2.接口编译自动追加缺省值

step1:

javac SomeInterface.java

step2:

open by Java Decompiler.exe

SomeInterface.java

package cn.zno.interfaze;

interface SomeInterface {

    int someField = 0;

    void someMethod();

}

SomInterface.class

package cn.zno.interfaze;

abstract interface SomeInterface
{
  public static final int someField = 0;

  public abstract void someMethod();
}

以上是最终模式，在写接口时可以不写缺省值，但不可以填写缺省值以外的值

唯一可变是接口是通用还是包内可用及（public or 缺省 ）