Java implements multiple inheritance:

Source: Internet
Author: User

Java does not have multiple inheritance, C + +, but Java provides interface, extends, and implement, the effect of multiple inheritance is still possible:

1 /**2 * Created by Franklin Yang on 2015.10.23.3  */4 5 //6 InterfaceBase {7      Public voidmethod1 ();8 }9 Ten InterfaceAIextendsbase{ One      Public voidmethod2 (); A      Public voidmethod3 (); - //Public void Method4 (); - //Public void Method5 (); the } -  - InterfaceAIIextendsAI { - //Public void Method1 (); + //Public void Method2 (); - //Public void Method3 (); +      Public voidmethod4 (); A      Public voidmethod5 (); at } -  - classAbaseImplementsbase{ -      Public voidmethod1 () { -System.out.println ("Class abase implementation of interface base method 1"); -     } in } -  to classAbextendsAbaseImplementsai{ + //Public void Method1 () { - //System.out.println ("Class AB implements the interface Ai Method 1"); the //    } *      Public voidmethod2 () { $SYSTEM.OUT.PRINTLN ("Class AB implementation of interface Ai Method 2");Panax Notoginseng     } -      Public voidmethod3 () { theSYSTEM.OUT.PRINTLN ("Class AB implementation of interface Ai Method 3"); +     } A  the  + //Public void Method4 () {} - //Public void Method5 () {} $ } $  - classADextendsAbImplementsaii{ - //Public void Method1 () { the //System.out.println ("class ad Implements interface Ai Method 1"); - //    }Wuyi  the  - //Public void Method2 () {} Wu //Public void Method3 () {} -      Public voidmethod4 () { AboutSYSTEM.OUT.PRINTLN ("class ad Implements interface aII Method 4"); $     } -      Public voidMethod5 () { -SYSTEM.OUT.PRINTLN ("class ad Implements interface aII method 5"); -     } A } +  the //added by Whyang - classib{ $      Public voidDepend1 (Base b) { the b.method1 (); the     } the } the  -  in classaa{ the      Public voidDepend1 (AI i) { the i.method1 (); About     } the      Public voidDepend2 (AI i) { the i.method2 (); the     } +      Public voidDepend3 (AI i) { - i.method3 (); the     }Bayi } the  the classac{ -      Public voidDepend1 (AII i) { - i.method1 (); the     } the      Public voidDepend2 (AII i) { the i.method2 (); the     } -      Public voidDepend3 (AII i) { the i.method3 (); the     } the      Public voidDepend4 (AII i) {94 i.method4 (); the     } the      Public voidDepend5 (AII i) { the i.method5 ();98     } About } - 101 102  Public classisolate2{103      Public Static voidMain (string[] args) {104System.out.println ("11111111"); theIB base =NewIB ();106Base.depend1 (NewAB ());107 108System.out.println ("22222222");109AA A =NewAA (); theA.depend1 (NewAB ());111A.depend2 (NewAB ()); theA.depend3 (NewAB ());113  theSystem.out.println ("33333333"); theAC C =NewAC (); theC.depend1 (NewAD ());117C.depend2 (NewAD ());118C.depend3 (NewAD ());119C.depend4 (NewAD ()); -C.depend5 (NewAD ());121     }122}

Run a run:

The 11111111 class Abase implements the interface base method 122222222 class Abase implements the interface base method 1 class AB implements the interface Ai Method 2 class AB implements the interface Ai Method 333333333  0

Java implements multiple inheritance:

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.