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java_weekendowa_20221008
Commit 6eebe46d by Patryk Czarnik
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Kalkulator - start (jak kalkulatorek)

parent 7dea6a0e
Showing with 57 additions and 0 deletions
PC26-Spring/src/main/java/com/example/demo/Kalkulator.java 0 → 100644
package com.example.demo;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class Kalkulator {
@RequestMapping("/kalkulator")
public String dzialaj(Model model, Integer liczba1, Integer liczba2, String operacja) {
if(liczba1 != null && liczba2 != null) {
Integer wynik = switch(operacja) {
case "+" -> liczba1 + liczba2;
case "-" -> liczba1 - liczba2;
case "*" -> liczba1 * liczba2;
case "/" -> liczba1 / liczba2;
default -> 0;
};
model.addAttribute("wynik", wynik);
}
return "kalkulator.html";
}
}
PC26-Spring/src/main/resources/templates/kalkulator.html 0 → 100644
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>Kalkulatorek</title>
<link rel="stylesheet" type="text/css" th:href="@{/styl.css}" href="../static/styl.css">
</head>
<body>
<h1>Kalkulatorek z zajęć</h1>
<form class="kalkulator">
<input type="number" name="liczba1" th:value="${param.liczba1}">
<select name="operacja">
<option value="+">+</option>
<option value="-">-</option>
<option value="*">*</option>
<option value="/">/</option>
</select>
<input type="number" name="liczba2" th:value="${param.liczba2}">
<br>
<button>Oblicz</button>
</form>
<div class="wynik">
[[${param.liczba1}]] [[${param.operacja}]] [[${param.liczba2}]] = <strong>[[${wynik}]]</strong>
</div>
</body>
</html>
\ No newline at end of file
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