java文件代码注意多态体现在哪继承的要素从写返回值类型和方法名参数都得

注意多态体现在哪，继承的要素，从写注意返回值类型和方法名，参数都得一样

packagemmm.neusoft.java1;

publicclass

{

publicstaticvoidmain(String[]args)

{多态的继承就在这里

//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;

构造方法的参数不一定与父类的构造方法的参数一样，但是必须包含父类的参数

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