131 员工类
import java.util.*;
public class Main {
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner scan =new Scanner(System.in);
int ms=scan.nextInt();
int ss=scan.nextInt();
int ticheng=scan.nextInt();
int days=scan.nextInt();
int daysalary=scan.nextInt();
employee p1=new manager(ms);
employee p2=new salesman(ss,ticheng);
employee p3=new worker(days,daysalary);
System.out.println(p1.getSalary());
System.out.println(p2.getSalary());
System.out.println(p3.getSalary());
}
}
class employee{
int salary;
public employee() {
salary=0;
}
public employee(int s) {
salary=s;
}
int getSalary() {
return salary;
}
}
class manager extends employee{
public manager(int s) {
super(s);
}
int getSalary() {
return salary;
}
}
class salesman extends employee{
int ticheng;
public salesman(int s,int t){
super(s);
ticheng=t;
}
int getSalary() {
return salary+ticheng;
}
}
class worker extends employee{
int days;
int daysalary;
public worker(int d,int ds) {
days=d;
daysalary=ds;
}
int getSalary() {
return days*daysalary;
}
}
####################################
132 员工类-2
import java.util.*;
public class Main {
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner scan =new Scanner(System.in);
int ms=scan.nextInt();
int ss=scan.nextInt();
int ticheng=scan.nextInt();
int days=scan.nextInt();
int daysalary=scan.nextInt();
employee p1=new manager(ms);
employee p2=new salesman(ss,ticheng);
employee p3=new worker(days,daysalary);
System.out.println(p1.getSalary());
System.out.println(p2.getSalary());
System.out.println(p3.getSalary());
}
}
abstract class employee{
int salary;
public employee() {
salary=0;
}
public employee(int s) {
salary=s;
}
abstract int getSalary();
}
class manager extends employee{
public manager(int s) {
super(s);
}
int getSalary() {
return salary;
}
}
class salesman extends employee{
int ticheng;
public salesman(int s,int t){
super(s);
ticheng=t;
}
int getSalary() {
return salary+ticheng;
}
}
class worker extends employee{
int days;
int daysalary;
public worker(int d,int ds) {
days=d;
daysalary=ds;
}
int getSalary() {
return days*daysalary;
}
}
############################################
133-Shape类-2
import java.util.*;
public class Main {
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner scan =new Scanner(System.in);
double a=scan.nextInt();
double x=scan.nextInt();
double y=scan.nextInt();
double r=scan.nextInt();
shape p1=new Square(a);
shape p2=new Rectangle(x,y);
shape p3=new Circle(r);
System.out.printf("%.2f ",p1.getPerimeter());
System.out.printf("%.2f\n",p1.getArea());
System.out.printf("%.2f ",p2.getPerimeter());
System.out.printf("%.2f\n",p2.getArea());
System.out.printf("%.2f ",p3.getPerimeter());
System.out.printf("%.2f\n",p3.getArea());
}
}
class shape{
double getPerimeter() {
return 0;
}
double getArea() {
return 0;
}
}
class Square extends shape{
double x;
public Square(double xx) {
x=xx;
}
double getPerimeter() {
return 4*x;
}
double getArea() {
return x*x;
}
}
class Rectangle extends Square{
double y;
public Rectangle(double xx,double yy){
super(xx);
y=yy;
}
double getPerimeter() {
return 2*(x+y);
}
double getArea() {
return x*y;
}
}
class Circle extends shape{
double r;
public Circle(double rr) {
r=rr;
}
double getPerimeter() {
return 2*Math.PI*r;
}
double getArea() {
return Math.PI*r*r;
}
}
####################################
134 Shape类-3
import java.util.*;
public class Main {
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner scan =new Scanner(System.in);
double a=scan.nextDouble;
double x=scan.nextDouble;
double y=scan.nextDouble;
double r=scan.nextDouble;
shape p1=new Square(a);
shape p2=new Rectangle(x,y);
shape p3=new Circle(r);
System.out.printf("%.2f ",p1.getPerimeter());
System.out.printf("%.2f\n",p1.getArea());
System.out.printf("%.2f ",p2.getPerimeter());
System.out.printf("%.2f\n",p2.getArea());
System.out.printf("%.2f ",p3.getPerimeter());
System.out.printf("%.2f\n",p3.getArea());
}
}
abstract class shape{
abstract double getPerimeter();
abstract double getArea() ;
}
class Square extends shape{
double x;
public Square(double xx) {
x=xx;
}
double getPerimeter() {
return 4*x;
}
double getArea() {
return x*x;
}
}
class Rectangle extends Square{
double y;
public Rectangle(double xx,double yy){
super(xx);
y=yy;
}
double getPerimeter() {
return 2*(x+y);
}
double getArea() {
return x*y;
}
}
class Circle extends shape{
double r;
public Circle(double rr) {
r=rr;
}
double getPerimeter() {
return 2*Math.PI*r;
}
double getArea() {
return Math.PI*r*r;
}
}
#######################################
137 学生、大学生、研究生类-2
import java.util.Scanner;
public class Main{
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
int no = scan.nextInt();
String name = scan.next();
String sex = scan.next();
String major = scan.next();
int score = scan.nextInt();
Student s1,s2;
s1 = new CollegeStudent(no, name, sex, major,score);
no = scan.nextInt();
name = scan.next();
sex = scan.next();
major = scan.next();
String supervisor = scan.next();
score = scan.nextInt();
s2 = new GraduateStudent(no, name, sex, major, supervisor, score);
s1.getGrade();
s2.getGrade();
scan.close();
}
}
abstract class Student {
int no;
String name;
String sex;
int score;
Student(int n,String na,String s,int sc){
no = n;
name = na;
sex = s;
score = sc;
}
public void setSex(String s) {
sex = s;
}
public void setName(String na) {
name = na;
}
public void setNo(int n) {
no = n;
}
public int getNo() {
return no;
}
public String getName() {
return name;
}
public String getSex() {
return sex;
}
public int getScore() {
return score;
}
public void setScore(int sc) {
score = sc;
}
public void print(){
System.out.println("no: "+getNo());
System.out.println("name: "+getName());
System.out.println("sex: "+getSex());
}
public abstract void getGrade();
}
class CollegeStudent extends Student {
String major;
CollegeStudent(int no, String name, String sex, String m, int score){
super(no,name,sex,score);
major = m;
}
public String getMajor() {
return major;
}
public void setMajor(String m) {
major = m;
}
public void print(){
super.print();
System.out.println("major: "+major);
}
public void getGrade(){
if(score>=80){
System.out.println("A");
}else if(score>=70){
System.out.println("B");
}else if(score>=60){
System.out.println("C");
}else if(score>=50){
System.out.println("D");
}else{
System.out.println("E");
}
}
}
class GraduateStudent extends CollegeStudent {
String supervisor;
GraduateStudent(int no, String name, String sex, String major, String su, int score) {
super(no, name, sex, major, score);
supervisor = su;
}
public String getSupervisor() {
return supervisor;
}
public void setSupervisor(String su) {
supervisor = su;
}
public void print() {
super.print();
System.out.println("supervisor: " + supervisor);
}
public void doResearch() {
System.out.println(getName() + " is doing research");
}
public void getGrade() {
if (score >= 90) {
System.out.println("A");
} else if (score >= 80) {
System.out.println("B");
} else if (score >= 70) {
System.out.println("C");
} else if (score >= 60) {
System.out.println("D");
} else {
System.out.println("E");
}
}
}
#######################################
138打球过程
import java.util.Scanner;
public class Main{
public static void main(String[] args) {
BallMatch p;
Scanner scan = new Scanner(System.in);
int type = scan.nextInt();
String score = scan.next();
if(type==1) {
p= new FootballMatch(score);
p.compete(score);
}
if(type==2) {
p = new BasketBallMatch(score);
p.compete(score);
}
}
}
abstract class BallMatch{
public final void compete(String score){
checkin();
start();
play();
end();
annouceResult(score);
}
public void checkin(){
System.out.println("now checking in");
}
public void start(){
System.out.println("now starting");
}
public abstract void play();
public void end(){
System.out.println("now ending");
}
public void annouceResult(String result){
System.out.println("now annoucing result: "+result);
}
}
class FootballMatch extends BallMatch{
String score;
FootballMatch(String s){
score = s;
}
public void play(){
System.out.println("now playing football");
}
}
class BasketBallMatch extends BallMatch{
String score;
BasketBallMatch(String s){
score=s;
}
public void play(){
System.out.println("now playing basketball");
}
}
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