JAVA 实 验

import java.util.Scanner;
class Person
{
    private String name;
    private int age;
    private boolean gender;
    private int id;
    public String getname(){
        return name;
    }
    public void setname(String name){
        this.name=name;
    }
    public int getage(){
        return age;
    }
    public void setage(int age){
        this.age=age;
    }
    public boolean getgender(){
        return gender;
    }
    public void setgender(boolean gender){
        this.gender=gender;
    }
    public int getid(){
        return id;
    }
    public void setid(int id){
        this.id=id;
    }
        public Person()
    {
        System.out.println("This is constructor");
        //System.out.println("Person [name="+name+", age="+age+", gender="+gender+", id="+id+"]");
        System.out.println(name+","+age+","+gender+","+id);
        //System.out.println("Person [name=null, age=0, gender=false, id=0]");
    }
    public Person(String name ,int age, boolean gender)
    {
        this.name=name;
        this.age=age;
        this.gender=gender;
    }
    public String toString()
    {
        return "Person [name="+name+", age="+age+", gender="+gender+", id="+id+"]";
    }
}

public class Main{
    public static void main(String[] args){
        Scanner sc=new Scanner(System.in);
        int n=sc.nextInt();
        Person[] p=new Person[n];
        for(int i=0;i<n;i++){
            String a=sc.next();
            int b=sc.nextInt();
            boolean c=sc.nextBoolean();
            p[i]=new Person(a,b,c);
        }
        for(int i=n-1;i>=0;i--)
        {
            System.out.println(p[i].toString());
        }
        Person pp=new Person();
        System.out.println(pp.toString());
    }
}
//----------------------------------------------------------------------------------------------------------------------------
import java.util.Arrays;
import java.util.Scanner;
public class Main {
    public static void main(String[] args){
        Scanner in = new Scanner(System.in);
            Rectangle[] rectangle=new Rectangle[2];
            rectangle[0]=new Rectangle(in.nextInt(),in.nextInt());
            rectangle[1]=new Rectangle(in.nextInt(),in.nextInt());
            Circle[] circles=new Circle[2];
            circles[0]=new Circle(in.nextInt());
            circles[1]=new Circle(in.nextInt());
            System.out.println(rectangle[0].getPerimeter()+rectangle[1].getPerimeter()+
                    circles[0].getPerimeter()+circles[1].getPerimeter());
            System.out.println(rectangle[0].getArea()+rectangle[1].getArea()+
                    circles[0].getArea()+circles[1].getArea());
            System.out.println(Arrays.deepToString(rectangle));
            System.out.println(Arrays.deepToString(circles));
    }
 
}
class Rectangle{
    private int width;
    private int length;
    public Rectangle (int width,int length){
        this.width=width;
        this.length=length;
    }
    public int getPerimeter(){
        return (width+length)*2;
    }
    public int getArea(){
        return width*length;
    }
    public String toString(){
        return "Rectangle [" + "width=" + width + ", length=" + length + ']';
    }
}
class Circle{
    private int radius;
    private double s;
    public Circle(int radius){
        this.radius=radius;
    }
    public int getPerimeter() {
        s =  (Math.PI * 2 * radius);
        return (int)s;
    }
 
    public int getArea(){
        s = (Math.PI * radius * radius);
        return (int) s;
    }
    public String toString() {
        return "Circle [" + "radius=" + radius + ']';
    }
}
//-------------------------------------------------------------------------------------------------------------------
import java.util.Scanner;
class Main
{
    public static void main(String[] args)
    {   
        Scanner sc = new Scanner(System.in);
        String name=sc.next();
        int age=sc.nextInt();
        String sex=sc.next();
        Student s=new Student(name,sex,age);
        System.out.println(s.toString());
    }
}
class Student
{
    private String name;
    private String sex;
    private int age;
    public Student(String name ,String sex,int age){
        this.name =name;
        this.sex=sex;
        this.age=age;
    }
    public String toString(){
        return "Student [name='" +name+ "', sex='" +sex+ "', age=" +age+ "]";
    }
}
//----------------------------------------------------------------------------------------------------------------
import java.util.Scanner;
class Main
{
    public static void main(String[] args)
    {
        Scanner sc=new Scanner(System.in);
        int a=sc.nextInt();
        int b=sc.nextInt();
        int c=sc.nextInt();
        int d=sc.nextInt();
        int e=sc.nextInt();
        System.out.println(a);
        System.out.println(b+c);
        System.out.println(d*e);
    }
}
//---------------------------------------------------------------------------------------------------------------
import java.util.Scanner;
class Goods
{
    private String name;
    private double price;
    public Goods(String name,double price)
    {
        this.name=name;
        this.price=price;
    }
    public double getPrice(){
        return price;
    }
    public String toString(){
        return name+","+price;
    }
}
class Main{
    public static void main(String args[]){
        Goods ga[] =new Goods[5];
        Scanner sc = new Scanner(System.in);
        
        for(int i =0;i<5;i++){
            ga[i]= new Goods(sc.next(),sc.nextDouble());
        }        
        
        double  shouldPay = 0;
        for(Goods g:ga){
            shouldPay += g.getPrice();
            System.out.println(g.toString());
        }
        
        System.out.println("should pay:"+shouldPay);            
    }
}
//--------------------------------------------------------------------------------------------------------
import java.util.Scanner;
class Student
{
    private String name;
    private String gender;
    private int score;
    private boolean award;
    public Student(String name,String gender,int score,boolean award)
    {
        this.name=name;
        this.gender=gender;
        this.score=score;
        this.award=award;
    }
    //public 
    public String toString(){
        return "Student "+"[name="+name+", gender="+gender+", score="+score+", award="+award+"]";
    }
}
class Main{
    public static void main(String args[]){
        Scanner sc = new Scanner(System.in);
        String name=sc.next();
        String gender=sc.next();
        int score=sc.nextInt();
        boolean award=sc.nextBoolean();
        Student st=new Student(name,gender,score,award);
        System.out.println(st.toString());
    }
}
//-----------------------------------------------------------------------------------------------
import java.util.Scanner;
class Main{
    public static void main(String[] args)
    {
        Scanner sc=new Scanner(System.in);
        Teacher[] t = new Teacher[2];
        int a=0;
        int b=0;
        for(int i=0;i<2;i++){
            int no=sc.nextInt();
            String name = sc.next();
            int age = sc.nextInt();
            String se=sc.next();
            t[i]=new Teacher(no,name,age,se);
            if(i==0) a=no;
            else b=no;
        }
        for(int i=0;i<2;i++)
        {
            System.out.println(t[i].toString());
        }
        if(a==b) System.out.printf("true");
        else System.out.printf("false");
    }
}
class Teacher{
    private int no;
    private String name;
    private int age;
    private String se;
    public Teacher(int no,String name ,int age,String se)
    {
        this.no=no;
        this.name=name;
        this.age=age;
        this.se=se;
    }
    public String toString(){
        return "no: " +no+ ", name:" +name+ ", age: " +age+ ", seminary: "+se;
    }
}
//---------------------------------------------------------------------------------------------------
import java.util.Scanner;

class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        double sum1 = 0;
        double sum2 = 0;
        
            String C1 = sc.next();
            double C2 = sc.nextDouble();
            sum1 += C2;
            int C3 = sc.nextInt();
            sum1 += C3;
            String G = sc.next();
            String X1 = sc.next();
            int X2 = sc.nextInt();
            sum1 += X2;
            String S1 = sc.next();
            int S2 = sc.nextInt();
            sum1 += S2;
            String SS1 = sc.next();
            int SS2 = sc.nextInt();
            sum1 += SS2;

            // 读取第二部分输入
            String c1 = sc.next();
            double c2 = sc.nextDouble();
            sum2 += c2;
            int c3 = sc.nextInt();
            sum2 += c3;
            String g = sc.next();
            String x1 = sc.next();
            int x2 = sc.nextInt();
            sum2 += x2;
            String s1 = sc.next();
            int s2 = sc.nextInt();
            sum2 += s2;
            String ss1 = sc.next();
            int ss2 = sc.nextInt();
            sum2 += ss2;

            // 检查总和是否相等
            if (sum1 == sum2) {
                System.out.println("true");
            } else {
                System.out.println("false");
            }

            // 输出计算机1的信息
            System.out.println("Computer1:");
            System.out.println("CPU:");
            System.out.printf("Model: %s\n", C1);
            System.out.printf("Frequency: %.1f\n",C2);
            System.out.printf("Number of Cores: %d\n",C3);
            System.out.printf("Mainboard:\n");
            System.out.printf("Model: %s\n", G);
            System.out.printf("Memory:\n");
            System.out.printf("Model: %s\n", X1);
            System.out.printf("Size: %d\n",X2);
            System.out.printf("Screen:\n");
            System.out.printf("Model: %s\n", S1);
            System.out.printf("Size: %s\n", S2);
            System.out.printf("Harddisk:\n");
            System.out.printf("Model: %s\n", SS1);
            System.out.printf("Size: %d\n", SS2);

            System.out.println("Computer2:");
            System.out.println("CPU:");
            System.out.printf("Model: %s\n", c1);
            System.out.printf("Frequency: %.1f\n",c2);
            System.out.printf("Number of Cores: %d\n",c3);
            System.out.printf("Mainboard:\n");
            System.out.printf("Model: %s\n", g);
            System.out.printf("Memory:\n");
            System.out.printf("Model: %s\n", x1);
            System.out.printf("Size: %d\n",x2);
            System.out.printf("Screen:\n");
            System.out.printf("Model: %s\n", s1);
            System.out.printf("Size: %s\n", s2);
            System.out.printf("Harddisk:\n");
            System.out.printf("Model: %s\n", ss1);
            System.out.printf("Size: %d\n", ss2);

        }
    }

//-----------------------------------------------------------------------------------------------------
import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        //调用无参构造方法，并通过setter方法进行设值
        String sid1 = sc.next();
        String name1 = sc.next();
        int age1 = sc.nextInt();
        String major1 = sc.next();
        Student student1 = new Student();
        student1.setSid(sid1);
        student1.setName(name1);
        student1.setAge(age1);
        student1.setMajor(major1);
        //调用有参构造方法
        String sid2 = sc.next();
        String name2 = sc.next();
        int age2 = sc.nextInt();
        String major2 = sc.next();
        Student student2 = new Student(sid2, name2, age2, major2);
        //对学生student1和学生student2进行输出
        student1.print();
        student2.print();
    }
}
class Student{
    private  String sid ;
    private  String name ;
    private  int age ;
    private  String major ;
    public Student(String sid,String name,int age,String major)
    {
        this.sid=sid;
        this.name=name;
        this.age=age;
        this.major=major;
    }
    public Student()
    {
        this.sid=sid;
        this.name=name;
        this.age=age;
        this.major=major;
    }
    public void setSid(String sid){
        this.sid=sid;
    }
    public void setName(String name){
                this.name=name;
    }
    public void setAge(int age)
    {
        this.age=age;
    }
    public void setMajor(String major)
    {
        this.major=major;
    }
    public void print() {
        System.out.println("学号：" + sid + "，姓名：" + name + "，年龄：" + age + "，专业：" + major);
    }
}