Tutorial 3
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<?xml version="1.0" encoding="UTF-8"?>
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<module type="JAVA_MODULE" version="4">
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<component name="NewModuleRootManager" inherit-compiler-output="true">
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<exclude-output />
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<content url="file://$MODULE_DIR$">
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<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
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</content>
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<orderEntry type="jdk" jdkName="openjdk-22" jdkType="JavaSDK" />
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<orderEntry type="sourceFolder" forTests="false" />
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</component>
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</module>
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import java.util.Scanner;
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public class VendingMachine {
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public VendingMachine() {}
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public double selectDrink() {
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Scanner sc = new Scanner(System.in);
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int drinkSelection;
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double drinkCost = 0;
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System.out.println("====== Vending Machine ======");
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System.out.println("|1. Buy Beer ($3.00) |");
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System.out.println("|2. Buy Coke ($1.00) |");
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System.out.println("|3. Buy Green Tea ($5.00) |");
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System.out.println("|============================");
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do {
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System.out.println("Please enter selection: ");
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drinkSelection = sc.nextInt();
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} while (drinkSelection < 1 || drinkSelection > 3);
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if (drinkSelection == 1) drinkCost = 3.00;
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else if (drinkSelection == 2) drinkCost = 1.00;
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else if (drinkSelection == 3) drinkCost = 5.00;
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return drinkCost;
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}
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public double insertCoins(double drinkCost) {
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double amount = 0.0;
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Scanner sc = new Scanner(System.in);
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System.out.println("Please insert coins: ");
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System.out.println("========== Coins Input ===========");
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System.out.println("|Enter 'Q' for ten cents input |");
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System.out.println("|Enter 'T' for twenty cents input|");
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System.out.println("|Enter 'F' for fifty cents input |");
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System.out.println("|Enter 'N' for a dollar input |");
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System.out.println("==================================");
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do {
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char coin = sc.next().charAt(0);
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switch (coin)
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{
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case 'Q': case 'q':
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amount += 0.10;
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break;
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case 'T': case 't':
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amount += 0.20;
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break;
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case 'F': case 'f':
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amount += 0.50;
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break;
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case 'N': case 'n':
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amount += 1.00;
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break;
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}
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System.out.printf("Coins inserted: %.2f \n", amount);
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} while (amount < drinkCost);
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return amount;
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}
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public void checkChange(double amount, double drinkCost)
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{
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double change = 0.0;
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if (amount > drinkCost)
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{
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change = amount - drinkCost;
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System.out.printf("Change $ %.2f \n", change);
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}
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}
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public void printReceipt()
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{
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System.out.println("Please collect your drink");
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System.out.println("Thank you!!");
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}
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}
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<?xml version="1.0" encoding="UTF-8"?>
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<module type="JAVA_MODULE" version="4">
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<component name="NewModuleRootManager" inherit-compiler-output="true">
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<exclude-output />
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<content url="file://$MODULE_DIR$">
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<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
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</content>
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<orderEntry type="jdk" jdkName="openjdk-22" jdkType="JavaSDK" />
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<orderEntry type="sourceFolder" forTests="false" />
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</component>
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</module>
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<?xml version="1.0" encoding="UTF-8"?>
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<module type="JAVA_MODULE" version="4">
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<component name="NewModuleRootManager" inherit-compiler-output="true">
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<exclude-output />
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<content url="file://$MODULE_DIR$">
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<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
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</content>
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<orderEntry type="jdk" jdkName="openjdk-22" jdkType="JavaSDK" />
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<orderEntry type="sourceFolder" forTests="false" />
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</component>
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</module>
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<?xml version="1.0" encoding="UTF-8"?>
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<module type="JAVA_MODULE" version="4">
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<component name="NewModuleRootManager" inherit-compiler-output="true">
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<exclude-output />
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<content url="file://$MODULE_DIR$">
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<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
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</content>
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<orderEntry type="jdk" jdkName="openjdk-22" jdkType="JavaSDK" />
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<orderEntry type="sourceFolder" forTests="false" />
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</component>
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</module>
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<?xml version="1.0" encoding="UTF-8"?>
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<module type="JAVA_MODULE" version="4">
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<component name="NewModuleRootManager" inherit-compiler-output="true">
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<exclude-output />
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<content url="file://$MODULE_DIR$">
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<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
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</content>
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<orderEntry type="jdk" jdkName="openjdk-22" jdkType="JavaSDK" />
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<orderEntry type="sourceFolder" forTests="false" />
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</component>
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</module>
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public class Point {
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protected int x, y;
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public Point() { x = 0; y = 0; }
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public Point(int x, int y) { this.x = x; this.y = y; }
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public void setPoint(int x, int y) { this.x = x; this.y = y; }
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public int getX() { return x; }
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public int getY() { return y; }
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public String toString() { return "[" + x + "," + y + "]"; }
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}
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<?xml version="1.0" encoding="UTF-8"?>
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<module type="JAVA_MODULE" version="4">
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<component name="NewModuleRootManager" inherit-compiler-output="true">
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<exclude-output />
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<content url="file://$MODULE_DIR$">
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<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
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</content>
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<orderEntry type="jdk" jdkName="openjdk-22" jdkType="JavaSDK" />
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<orderEntry type="sourceFolder" forTests="false" />
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</component>
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</module>
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<?xml version="1.0" encoding="UTF-8"?>
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<module type="JAVA_MODULE" version="4">
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<component name="NewModuleRootManager" inherit-compiler-output="true">
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<exclude-output />
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<content url="file://$MODULE_DIR$">
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<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
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</content>
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<orderEntry type="jdk" jdkName="openjdk-22" jdkType="JavaSDK" />
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<orderEntry type="sourceFolder" forTests="false" />
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</component>
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</module>
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<?xml version="1.0" encoding="UTF-8"?>
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<module type="JAVA_MODULE" version="4">
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<component name="NewModuleRootManager" inherit-compiler-output="true">
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<exclude-output />
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<content url="file://$MODULE_DIR$">
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<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
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</content>
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<orderEntry type="jdk" jdkName="openjdk-22" jdkType="JavaSDK" />
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<orderEntry type="sourceFolder" forTests="false" />
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</component>
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</module>
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