java文件代碼注意多態(tài)體現(xiàn)在哪繼承的要素從寫返回值類型和方法名參數(shù)都得

注意多態(tài)體現(xiàn)在哪，繼承的要素，從寫注意返回值類型和方法名，參數(shù)都得一樣

packagemmm.neusoft.java1;

publicclass

{

publicstaticvoidmain(String[]args)

{多態(tài)的繼承就在這里

//TODOAuto-generatedmethodstub

ColaEmployeec1=newSalariedEmployee("a",1,89,0.3);

ColaEmployeec2=newSalesEmployee("b",2,3,3);

ColaEmployeec3=newHourlyEmployee("c",3,890);ColaEmployee[]s=newColaEmployee[3];s[0]=c1;

s[1]=c2;

s[2]=c3;

for(inti=0;i<3;i++){System.out.println(s[i].getSalary(3));

}

}

}

publicclassColaEmployee

{

Stringname;intmonth;doublesalary;

ColaEmployee(Stringname,intmonth){=name;this.month=month;

}

publicdoublegetSalary(inti)

{

//TODOAuto-generatedmethodstub

returnsalary;

}

}

publicclassHourlyEmployeeextendsColaEmployee

{

doublehour;

doublerate=30;

構造方法的參數(shù)不一定與父類的構造方法的參數(shù)一樣，但是必須包含父類的參數(shù)

HourlyEmployee(Stringname,intmonth,doublehour)

{

super(name,month);

//TODOAuto-generatedconstructorstub

this.hour=hour;

}

publicdoublegetSalary(intm){

if(hour<160){

salary=hour*rate;

}

else{

}

salary=160*rate+(hour-160)*rate*1.5;

if(this.month==m){

salary+=100;

}

returnsalary;

}

}

publicclassSalariedEmployeeextendsColaEmployee

{

lilv)

doublenumber;

doubleli;

doublejibensal=8000;

SalariedEmployee(Stringname,intmonth,doublenumber,double

{

super(name,month);

//TODOAuto-generatedconstructorstub

this.number=number;li=lilv;

}

publicdoublegetSalary(intm){

if(this.month==m){

salary=100+jibensal+number*li;

}

else{

}

salary=jibensal+number*li;

returnsalary;

}

}

publicclassSalesEmployeeextendsColaEmployee

{

doublenumber;

doubleli;

doublejibensal=8000;

SalesEmployee(Stringname,intmonth,doublen,doublel)

{

super(name,month);

//TODOAuto-generatedconstructorstubnumber=n;

li=l;

}

publicdoublegetSalary(intm){

if(this.month==m