2021-03-05 09:17:27

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package geometricobject;

import java.util.Date;


/**
 *
 * @author Admin
 */
public abstract class GeometricObject {
    String collor;
    boolean filles;
    Date dateCreated;

    public GeometricObject() {
    }

    public GeometricObject(String collor, boolean filles, Date dateCreated) {
        this.collor = collor;
        this.filles = filles;
        this.dateCreated = dateCreated;
    }

    public String getCollor() {
        return collor;
    }

    public void setCollor(String collor) {
        this.collor = collor;
    }

    public boolean isFilles() {
        return filles;
    }

    public void setFilles(boolean filles) {
        this.filles = filles;
    }

    public Date getDateCreated() {
        return dateCreated;
    }

    @Override
    public String toString() {
        return "collor=" + collor + ", filles=" + filles + ", dateCreated=" + dateCreated;
    }
public abstract double getArea();
public abstract double getPerimeter();    
   
}

2021-03-05 09:17:16

/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package geometricobject;

/**
 *
 * @author Admin
 */
public abstract class Circle extends GeometricObject {

    double radius;

    public Circle() {
    }

    public Circle(double radius) {
        this.radius = radius;
    }

    public double getRadius() {
        return radius;
    }

    public void setRadius(double radius) {
        this.radius = radius;
    }

    public double getDiameter() {
        double Diameter = 2 * radius;
        return Diameter;
    }

    @Override
    public double getArea() {
        double Area = radius * radius * 3.14;
        return Area;
    }

    @Override
    public double getPerimeter() {
        double Perimeter = (2 * radius) * 3.14;
        return Perimeter;
    }

}

2021-03-05 09:16:53

/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package geometricobject;

/**
 *
 * @author Admin
 */
public class Rectangle extends GeometricObject{
    double width;
    double height;

    @Override
    public double getArea() {
       double Area = width * height;
        return Area;
    }

    @Override
    public double getPerimeter() {
double Perimeter = 2 * (width + height) ;
return Perimeter;
    }

    public Rectangle() {
    }

    public Rectangle(double width, double height) {
        this.width = width;
        this.height = height;
    }

    public double getWidth() {
        return width;
    }

    public void setWidth(double width) {
        this.width = width;
    }

    public double getHeight() {
        return height;
    }

    public void setHeight(double height) {
        this.height = height;
    }

    
}

2021-03-05 09:16:24

/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package geometricobject;

import java.util.ArrayList;
import java.util.Scanner;

/**
 *
 * @author Admin
 */
public class test {
    public static void main(String[] args) {
        ArrayList<GeometricObject> l= new ArrayList<>();
        Circle c = new Circle() {};
        Rectangle r = new Rectangle();
        
        Scanner scan = new Scanner (System.in);
        System.out.println("Nhap radius");
        c.radius = scan.nextDouble();
        System.out.println("");
        System.out.println("Nhap chieu rong");
        r.height = scan.nextDouble();
        System.out.println("Nhap chieu dai");
        r.width = scan.nextDouble();
        l.add(r);
        l.add(c);
    System.out.println(sumArea(c,r));
 }
    public static double sumArea(Circle c , Rectangle r){
       double t = c.getArea() + r .getArea();
        return t;
    }
}
        
        
    
    
 
    

2021-03-05 09:08:56

import java.util.ArrayList;
import java.util.Scanner;

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 *
 * @author Administrator
 */
public class Driver {
    public static void main(String[] args){
        ArrayList<sumArea> list = new ArrayList<>();
        System.out.println("Nhap \n");
		Scanner input = new Scanner(System.in);
		
    }
}

2021-03-05 09:08:29

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package lesson1;


/**
 *
 * @author Administrator
 */
public class Circle extends GeometricObject{
    double radius;
    
    public Circle(){
    
    }
    public Circle(double radius) {
        this.radius = radius;
    }

    public double getRadius() {
        return radius;
    }

    public void setRadius(double radius) {
        this.radius = radius;
    }

    @Override
    public double Area() {
        return radius * radius * Math.PI;
    }

    @Override
    public double Perimeter() {
        return 2 * radius;
    }
    public double getDiameter(){
        return 2 * radius * Math.PI;
    }
    
    
}

2021-03-05 09:08:09

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package lesson1;

import static javax.swing.Spring.width;

/**
 *
 * @author Administrator
 */
public class Retangle extends GeometricObject{
    double with;
    double height;
    
    public Retangle(){
    
    }
    public Retangle(double with, double height) {
        this.with = with;
        this.height = height;
    }

    public double getWith() {
        return with;
    }

    public void setWith(double with) {
        this.with = with;
    }

    public double getHeight() {
        return height;
    }

    public void setHeight(double height) {
        this.height = height;
    }
    
    @Override
    public double Area() {
       return width * height;
    }

    @Override
    public double Perimeter() {
        return 2 * (width + height);
    }
    
}

2021-03-05 09:07:56

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package lesson1;

import java.util.Date;

/**
 *
 * @author Administrator
 */
public abstract class GeometricObject {
    String color;
    boolean filled;
    java.util.Date dateCreate;

    public GeometricObject() {
    }

    public GeometricObject(String color, boolean filled, Date dateCreate) {
        this.color = color;
        this.filled = filled;
        this.dateCreate = dateCreate;
    }
    public abstract double Area();
    
    public abstract double Perimeter();
    
    public double getArea(double Area){
        return Area;
    }
    public double getPerimeter(double Perimeter){
        return Perimeter;
    }
    public String getColor() {
        return color;
    }

    public void setColor(String color) {
        this.color = color;
    }

    public boolean isFilled() {
        return filled;
    }

    public void setFilled(boolean filled) {
        this.filled = filled;
    }

    public Date getDateCreate() {
        return dateCreate;
    }

    public void setDateCreate(Date dateCreate) {
        this.dateCreate = dateCreate;
    }
    
}

2021-03-05 09:05:09

#Circle.java

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package Figure1;

/**
 *
 * @author dong
 */
public class Circle extends GeometricObject {
    private double radius;
    
    public Circle(){
	}
    public Circle(double radius){
            this.radius = radius;
    }
    public Circle(double radius, String color, boolean filled)
    {
            this.radius = radius;
            setColor(color);
            setFilled(filled);
    }

    //getter
    public double getRadius()
    {
            return radius;
    }
    @Override
    public double getArea()
    {
            return radius * radius * Math.PI;
    }
    @Override
    public double getPerimeter()
    {
            return 2 * radius;
    }
    public double getDiameter()
    {
            return 2 * radius * Math.PI;
    }
    //setter
    public void setRadius( double radius)
    {
            this.radius = radius;
    }
    //print the Circle
    public void printCircle()
    {
            System.out.println("Tạo hình tròn thành công " + getDateCreated() + " Bán kính " + radius);
    }
    
}

#GeometricObject.java

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package Figure1;

import java.util.Date;

/**
 *
 * @author dong
 */
public abstract class GeometricObject {
   private  String color;
   private  boolean filled;
   private java.util.Date DateCreated ;
    
    public  GeometricObject(){ 
    }

    public GeometricObject(String colour, boolean filled, Date datetime) {
        this.color = colour;
        this.filled = filled;
        this.DateCreated = datetime;
    }
    
    public String getColour(){
        return color;
    }
    public void setColor(String color) {
        this.color = color;
    }

    public void setFilled(boolean filled) {
        this.filled = filled;
    }

    public void setDatetime(Date DateCreated) {
        this.DateCreated = DateCreated;
    }

    public boolean isFilled() {
        return filled;
    }

    public Date getDateCreated() {
        return DateCreated;
    }

    /**
     *
     * @return 
     */
     public abstract double getArea();
     
    
     public abstract double getPerimeter();
}

#Main.java

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package Figure1;

/**
 *
 * @author dong
 */
public class Main {
    public static double sumArea(GeometricObject[] a){
        double sum = 0;
        for (GeometricObject a1 : a) {
            sum += a1.getArea();
        }
		return sum;
    }
    public static void main(String[] args) {
        GeometricObject[] array = {new Circle(5), new Circle(8),
			new Rectangle(3, 4), new Rectangle(4, 2)};

		// Display results
		System.out.println("Tổng tất cả là: " + sumArea(array));
    }
}

#Rectangle.java

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package Figure1;

/**
 *
 * @author dong
 */
public class Rectangle extends GeometricObject{
	//date field
	private double width;
	private double height;
	
	//constructors
	public Rectangle(double width, double height)
	{
		this.width = width;
		this.height = height;
	}
	public Rectangle(double width, double height, String color, boolean filled)
	{
		this.width = width;
		this.height = height;
		setColor(color);
		setFilled(filled);
	}
	
	//getter
	public double getWidth()
	{
		return width;
	}
	public void setWidth(double width)
	{
		this.width = width;
	}
	public double getHeight()
	{
		return height;
	}
	//setter

        public void setHeight(double height) {
            this.height = height;
        }
	
        @Override
	public double getArea()
	{
		return width * height;
	}
	//get perimeter
        @Override
	public double getPerimeter(){
		return 2 * (width + height);
	}
}

2021-03-05 09:04:57

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package exem1;

/**
 *
 * @author mac
 */
public class GeometricObject {
	//date fields
	private String color = "White";
	private boolean filled;
	private java.util.Date dateCreated;
	
	//constructors
	public GeometricObject()
	{
		dateCreated = new java.util.Date();
	}
	public GeometricObject(String color, boolean filled)
	{
		dateCreated = new java.util.Date();
		this.color = color;
		this.filled = filled;
	}
	
	//getter
	public String getColor()
	{
		return color;
	}
	public boolean isFilled()
	{
		return filled;
	}
	public java.util.Date getDateCreated()
	{
		return dateCreated;
	}
	//setter
	public void setColor(String color)
	{
		this.color = color;
	}
	public void setFilled(boolean filled)
	{
		this.filled = filled;
	}
	
	//override toString
	public String toString()
	{
		return "Created on " + dateCreated + "\ncolor: " + color + 
				" and filled: " + filled;
	}
}
/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package exam1;

/**
 *
 * @author mac 
 */
public class Circle  extends GeometricObject {
	//data field
	private double radius;
	
	//constructors
	public Circle(){
	}
	public Circle(double radius){
		this.radius = radius;
	}
	public Circle(double radius, String color, boolean filled)
	{
		this.radius = radius;
		setColor(color);
		setFilled(filled);
	}
	
	//getter
	public double getRadius()
	{
		return radius;
	}
	public double getArea()
	{
		return radius * radius * Math.PI;
	}
	public double getPerimeter()
	{
		return 2 * radius;
	}
	public double getDiameter()
	{
		return 2 * radius * Math.PI;
	}
	//setter
	public void setRadius( double radius)
	{
		this.radius = radius;
	}
	//print the Circle
	public void printCircle()
	{
		System.out.println("The circle is created " + getDateCreated() + " and the radius is " + radius);
	}
}
/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package exam1;

/**
 *
 * @author mac
 */
public class Rectangle {
    double width, height;

    public Rectangle() {
    }

    public Rectangle(double width, double height) {
        this.width = width;
        this.height = height;
    }

    public double getWidth() {
        return width;
    }

    public void setWidth(double width) {
        this.width = width;
    }

    public double getHeight() {
        return height;
    }

    public void setHeight(double height) {
        this.height = height;
    }
    
    
}
/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package exam1;

/**
 *
 * @author mac
 */
import java.util.*;

public class main {
	//print out menu
	public static int getMenuOption(Scanner inputScanner) throws IllegalArgumentException
	{
		if(inputScanner != null)
		{nnn
			while(true)
			{
				try
			n	{
					//get the option
					System.out.print("(1)Add (2)Sort (3)Print (0)Exit: ");
					int option = inputScanner.nextInt();
					if(option < 0 || option >= 4)
						System.out.println("Incorrect input: 0, 1, 2, or 3 is required\n");
					else
						return option;
				}
				//when input error occurs
				catch(InputMismatchException ex)
				{
					System.out.println("Incorrect input: 0, 1, 2, or 3 is required\n");
					inputScanner.nextLine();
				}
			}
		}
		//when argument have problem
		else
		{
			throw new IllegalArgumentException("Incorrect input: 0, 1, 2, or 3 is required");
		}
	}
	
	//add triangle to the list
	public static void addTriangle(Scanner inputScanner,
			ArrayList<Triangle> list) throws IllegalArgumentException
	{
		if(inputScanner != null || list != null)
		{ 
			Triangle tri;
			while(true)
			{
				//add triangle
				try
				{
					System.out.print("Enter three sides: ");
					tri = new Triangle(inputScanner.nextDouble(), inputScanner.nextDouble(), inputScanner.nextDouble());
					break;
				}
				//when input error happens
				catch(InputMismatchException ex)
				{
					System.out.println("Incorrect input: double value is required");
					inputScanner.nextLine();
				}
				//when arguments have problem
				catch(IllegalArgumentException ex1)
				{
					System.out.println(ex1.getMessage());
				}
			}
			//decide color
			System.out.print("Enter the color: ");
			inputScanner.nextLine();
			tri.setColor(inputScanner.nextLine());
			while(true)
			{
				//decide if it is filled
				try
				{
					System.out.print("Enter a boolean value for filled: ");
					tri.setFilled(inputScanner.nextBoolean());
					break;
				}
				//when input error happens
				catch(InputMismatchException ex1)
				{
					System.out.println("Incorrect input: boolean value is required ");
					inputScanner.nextLine();
				}
			}
			list.add(tri);
			System.out.println("");
		}
		//when arguments have problem
		else 
			throw new IllegalArgumentException("");
	
	}
	
	//insertion sort the list by their area
	public static void sortTriangles(ArrayList<Triangle> list)
	{
		Triangle triTem;
		for(int i = 1; i < list.size(); i ++)
		{
			for(int j = 0; j < list.size(); j++)
			{
				if(list.get(i).getArea() < list.get(j).getArea())
				{
					triTem = list.get(i);
					for(int k = i; k > j; k--)
					{
						list.set(k, list.get(k - 1));
					}
					list.set(j, triTem);
				}
			}
		}
		
		System.out.println("Insertion sort performed!\n");
	}
	
	//print out the triangle(s) in the list
	public static void printTriangles(ArrayList<Triangle> list)
	{
		switch(list.size())
		{
		case 0:
			System.out.println("The triangle list is empty!\n");
			break;
		case 1:
			System.out.println("The triangle list has 1 triangle:\n" + list.get(0).toString() + "\n");
			break;
		default:
			System.out.println("The triangle list has " + list.size() + " triangles: ");
			for(int i = 0; i < list.size(); i++)
			{
				System.out.println(list.get(i).toString());
			}
			System.out.println("");
		}
	}
	
	public static void main(String[] args)
	{
		ArrayList<Triangle> list = new ArrayList<Triangle>();
		System.out.println("CS332 Triangle List\n");
		Scanner input = new Scanner(System.in);
		int ex;
		// 1 is add, 2 is sort, 3 is print, 0 is exit
		do
		{
			ex = getMenuOption(input);
			switch(ex)
			{
			case 1:
				addTriangle(input, list);
				break;
			case 2:
				sortTriangles(list);
				break;
			case 3:
				printTriangles(list);
			}
		} while(ex != 0);
		System.out.println("Goodbye!");
		input.close();

	}
}

Nam đã gửi Hôm nay lúc 15:51
1 bài nhưng chia ra nhiều lớp á

Nam đã gửi Hôm nay lúc 15:51
/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package exam1;

/**
 *
 * @author mac
 */
public class Rectangle extends GeometricObject{
	//date field
	private double width;
	private double height;
	
	//constructors
	public Rectangle(double width, double height)
	{
		this.width = width;
		this.height = height;
	}
	public Rectangle(double width, double height, String color, boolean filled)
	{
		this.width = width;
		this.height = height;
		setColor(color);
		setFilled(filled);
	}
	
	//getter
	public double getWidth()
	{
		return width;
	}
	public void setWidth(double width)
	{
		this.width = width;
	}
	public double getHeight()
	{
		return height;
	}
	//setter
	private void setHeight(double height)
	{
		this.height = height;
	}
	public double getArea()
	{
		return width * height;
	}
	//get perimeter
	public double getPerimeter(){
		return 2 * (width + height);
	}
}

Nam đã gửi Hôm nay lúc 15:51
/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package exam1;

/**
 *
 * @author mac
 */
public class Triangle extends GeometricObject{
	//date fields
	private double side1;
	private double side2;
	private double side3;
	
	//constructors
	public Triangle()
	{
		this(1.0, 1.0, 1.0);
	}
	public Triangle(double side1, double side2, double side3) throws IllegalArgumentException
	{
		if(side1 > 0 && side2 > 0 && side3 > 0 && ((side1 + side2 > side3) || (side2 + side3 > side1) || (side1 + side3 > side2)))
		{
			this.side1 = side1;
			this.side2 = side2;
			this.side3 = side3;
		}
		else
		{
			throw new IllegalArgumentException(
					"Invalid sides for triangle: (" + side1 + ", " + side2 + ", " + side3 + ")");
				
		}
	}
	
	//setters
	public void setSide1(double side1)
	{
		this.side1 = side1;
	}
	public void setSide2(double side2)
	{
		this.side2 = side2;
	}
	public void setSide3(double side3)
	{
		this.side3 = side3;
	}
	//getters
	public double getArea()
	{
		double p = (side1 + side2 + side3) / 2;
		return Math.sqrt(p * (p - side1) * (p - side2) * (p-side3));
	}
	//get perimeter
	public double getPerimeter()
	{
		return side1 + side2 + side3;
	}

	//override toString
	public String toString()
	{
		String fill = "not filled";
		if(isFilled())
			fill = "filled";
		String s = "Triangle (" + side1 + ", " + side2 + ",  " + side3 + "): "
				+ getColor() + ", " + fill + ", " + "area = " + getArea();
		return s;
	}
}