Your own demo---announce that you can begin to be free in the Java world.

1  Package$Interface;2 3  Public InterfaceIleavehome {4      Public Abstract inta ();5      Public Abstract intb ();6      Public Abstract intc ();7      Public Abstract intd ();8 9}

1  Package$Interface;2 3  Public Abstract classAbstracttools {4     PrivateString abs01;//Private to set the accessor, the external only can access5     PrivateString Abs02;6      Publicabstracttools (String abs01,string abs02)7     {8          This. abs01=abs01;9          This. abs02=Abs02;Ten     } One      A      Public voidtools1 () { -System.out.println ("ZZW abstract"); -     } the      Public Abstract inttool2 (); -      -      -      Public voidsetAbs01 (String abs01) +     { -          This. abs01=abs01; +     } A      PublicString getAbs01 () at     { -         returnabs01; -     } -      Public voidsetAbs02 (String abs02) -     { -          This. abs02=Abs02; in     } -      PublicString getAbs02 () to     { +         returnAbs02; -     } the}

1  Package$Interface;2 3  Public classLeavehomeimplextendsAbstracttoolsImplementsileavehome{4     5 6      PublicLeavehomeimpl (String a,string b) {7         Super(A, B);//calling the parent class's constructor method8         9         Ten     } One      Public inttool2 () { A         inta=6666;  -         returnA; -          the     } -      Public intA () { -         intA=1; -         returnA; +     } -      Public intB () { +         intB=1; A         returnb; at     } -      Public intC () { -         intC=1; -         returnC; -     } -      Public intd () { in         intD=1; -         returnD; to     } +  -      Public Static voidMain (String args[]) the     { *String z= "Z"; $String z6= "Z6";Panax NotoginsengLeavehomeimpl home=NewLeavehomeimpl (Z,Z6); -System.out.println ("home.a () =" +home.a ()); theSystem.out.println ("home.b () =" +home.b ()); +System.out.println ("home.c () =" +home.c ()); ASystem.out.println ("home.d () =" +HOME.D ());  theSystem.out.println ("home.tool2 () =" +home.tool2 ()); +System.out.println ("getabs01=" +home.getabs01 ()); -System.out.println ("getabs02=" +HOME.GETABS02 ()); $ home.tools1 (); $          -     } -      the  -}

1  Package$Interface;2 3  Public classLeavehometwiceextendsleavehomeimpl{4 String A;5 String B;6 7      PublicLeavehometwice () {//the first form of construction,8         9         Super("A", "B");//The parameter constructor of the parent class is automatically called when the value is passed in.Ten          One     } A      PublicLeavehometwice (String a,string b) {//The construction method with parameters embodies the overload of the construction method and the overloading of the construction method. -          -         Super(A, B);//changed the value of the parent class the          -     } -     //Override of method, override of method, overwrite of parent class -      Public intTool2 (inta) { +          -         intZZW; +zzw=A; A         returnZZW; at          -     } -      -      Public Static voidMain (String args[]) -     { -         intNum=123; inLeavehometwice a=NewLeavehometwice ();//corresponds to the first construction method -         //leavehometwice a=new leavehometwice ("Zzwtwice", "Aiguotwice");//corresponds to the second construction method toSystem.out.println (A.A () + "\ T" +a.b () + "\ T" +a.c () + "\ T" +A.D () + "\ T" +a.tool2 (num)); +          -          the a.tools1 (); *System.out.println ("getAbs01:" +a.getabs01 ()); $System.out.println ("GETABS02:" +A.GETABS02 ());Panax Notoginseng      -          the     } +  A}

Your own demo---announce that you can begin to be free in the Java world.