// voltei //

Revisão

Curso em Vídeo

- Algoritmos

- Bases numéricas

- Hardware

- Redes

- Excel

- Word

---- C descomplicado livro e curso

C++ Deitel

JAVA Completo

Excel Completo 

curso () POO 05

 // classe principal

package application;

 

import java.util.Locale;

import java.util.Scanner;

import entities.Product;

public class Program {

    public static void main(String[] args) {

        

        Locale.setDefault(Locale.US);

        Scanner sc = new Scanner(System.in);

        

        Product product = new Product();

        System.out.println("Enter Procduct Data: ");

        System.out.print("Name: ");

        product.name = sc.nextLine();

        System.out.print("Price: ");

        product.price = sc.nextDouble();

        System.out.print("Quantity in stock: ");

        product.quantity = sc.nextInt();

        

        

        System.out.println();

        System.out.println("Product data: " + product);

        

        System.out.println();

        System.out.println("Enter the number of products to be added in stock: ");

        int quantity = sc.nextInt();

        product.addProducts(quantity);

        

        System.out.println();

        System.out.println("Updated data: " + product);

        

        System.out.println();

        System.out.println("Enter the number of products to be removed from stock: ");

        quantity = sc.nextInt();

        product.removeProducts(quantity);

        

        System.out.println();

        System.out.println("Updated data: " + product);

        

        // ele entende que é um string e chama o tostring

        //System.out.println(product.toString());

        

        sc.close();

    }

    

}

// fim classe principal

// classe produto

package application;

 

import java.util.Locale;

import java.util.Scanner;

import entities.Product;

public class Program {

    public static void main(String[] args) {

        

        Locale.setDefault(Locale.US);

        Scanner sc = new Scanner(System.in);

        

        Product product = new Product();

        System.out.println("Enter Procduct Data: ");

        System.out.print("Name: ");

        product.name = sc.nextLine();

        System.out.print("Price: ");

        product.price = sc.nextDouble();

        System.out.print("Quantity in stock: ");

        product.quantity = sc.nextInt();

        

        

        System.out.println();

        System.out.println("Product data: " + product);

        

        System.out.println();

        System.out.println("Enter the number of products to be added in stock: ");

        int quantity = sc.nextInt();

        product.addProducts(quantity);

        

        System.out.println();

        System.out.println("Updated data: " + product);

        

        System.out.println();

        System.out.println("Enter the number of products to be removed from stock: ");

        quantity = sc.nextInt();

        product.removeProducts(quantity);

        

        System.out.println();

        System.out.println("Updated data: " + product);

        

        // ele entende que é um string e chama o tostring

        //System.out.println(product.toString());

        

        sc.close();

    }

    

}

// fim classe produto

curso () POO 04

 // classe principal

package application;

 

import java.util.Locale;

import java.util.Scanner;

import entities.Product;

public class Program {

    public static void main(String[] args) {

        

        Locale.setDefault(Locale.US);

        Scanner sc = new Scanner(System.in);

        

        Product product = new Product();

        System.out.println("Enter Procduct Data: ");

        System.out.print("Name: ");

        product.name = sc.nextLine();

        System.out.print("Price: ");

        product.price = sc.nextDouble();

        System.out.print("Quantity in stock: ");

        product.quantity = sc.nextInt();

        

        System.out.println(product);

        // ele entende que é um string e chama o tostring

        //System.out.println(product.toString());

        

        sc.close();

    }

    

}

// fim classe principal

// classe produto

package entities;

public class Product {

    

    public String name;

    public double price;

    public int quantity;

    

    public double totalValueInStock(){

        return price * quantity;

    }

    public void addProducts(int quantity){

        this.quantity += quantity;

    }

    public void removeProducts(int quantity){

        this.quantity -= quantity;

    }

    public String toString(){

        return name

            + ", $"

            + String.format("%.2f", price)

            //+ price

            + ", $"

            + quantity

            + " units, Total: $ "

            + String.format("%.2f", totalValueInStock());

            

    }

  

}

// fim classe produto

curso () POO 03

 // inicio principal

package application;

import entities.Triangle;

import java.util.Locale;

import java.util.Scanner;

public class Program {

    public static void main(String[] args) {        

        Locale.setDefault(Locale.US);

        Scanner sc = new Scanner(System.in);

        

        Triangle x,y;

        x = new Triangle();

        y = new Triangle();

        

        System.out.println("Enter the measures of triangle X: "); 

        x.a = sc.nextDouble();

        x.b = sc.nextDouble();

        x.c = sc.nextDouble();

        System.out.println("Enter the measures of triangle Y: ");

        y.a = sc.nextDouble();

        y.b = sc.nextDouble();

        y.c = sc.nextDouble();

      

        double areaX = x.area();

        double areaY = y.area();

        

        

        

        System.out.printf("Triangle X area: %.4f%n", areaX);

        System.out.printf("Triangle Y area: %.4f%n", areaY);

        

        if (areaX > areaY){

               System.out.println("Larger area: X");

        }

        else{

            System.out.println("Larger area: Y");

        }

        

        sc.close();

    }

}

// fim principal

// inicio classe triangulo

package entities;

public class Triangle {

    

    public double a;

    public double b;

    public double c;      

    

    public double area(){

        double p = (a + b +c) / 2.0;

        return Math.sqrt(p * (p - a) * (p - b) * (p - c));

                

     // double result = Math.sqrt(p * (p -a) * (p -b) * (p -c));

     // return result;

   }

}

// fim classe triangulo

curso () POO 02

 // principal

package application;

import entities.Triangle;

import java.util.Locale;

import java.util.Scanner;

public class Program {

    public static void main(String[] args) {        

        Locale.setDefault(Locale.US);

        Scanner sc = new Scanner(System.in);

        

        Triangle x,y;

        x = new Triangle();

        y = new Triangle();

        

        System.out.println("Enter the measures of triangle X: "); 

        x.a = sc.nextDouble();

        x.b = sc.nextDouble();

        x.c = sc.nextDouble();

        System.out.println("Enter the measures of triangle Y: ");

        y.a = sc.nextDouble();

        y.b = sc.nextDouble();

        y.c = sc.nextDouble();

      

        double p = (x.a + x.b + x.c) / 2.0;

        double areaX = Math.sqrt(p * (p - x.a) * (p - x.b) * (p - x.c));

        

        p = (y.a + y.b + y.c) / 2.0;

        double areaY = Math.sqrt(p * (p - y.a) * (p - y.b) * (p - y.c));

        

        System.out.printf("Triangle X area: %.4f%n", areaX);

        System.out.printf("Triangle Y area: %.4f%n", areaY);

        

        if (areaX > areaY){

               System.out.println("Larger area: X");

        }

        else{

            System.out.println("Larger area: Y");

        }

        

        sc.close();

    }

}

// fim principal

// classe triangulo

package entities;

public class Triangle {

    

    public double a;

    public double b;

    public double c;      

}

// fim classe triangulo