The member method of the JavaSE8 base interface can only be an abstract method and is of the public type.

Os:windows7 x64
Jdk:jdk-8u131-windows-x64
Ide:eclipse Oxygen Release (4.7.0)


Code:

The member method of an interface can only be an abstract method, and is the public abstract void Say0 () of the public type interface persontrain{//standard;//public the abstract prefix, you write or do not write, I am here void say1 (); abstract void Say2 ();p ublic void Say3 ();} The specific class implements an interface class Javaer implements Persontrain {public void Say0 () {}public void Say1 () {}public void Say2 () {}public void SA Y3 () {}}class Demo {public static void main (string[] agrs) {}}

Results:

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The member method of the JavaSE8 base interface can only be an abstract method and is of the public type.