Update MyFirstClass.java

src/lesson1/MyFirstClass.java

@@ -15,6 +15,60 @@ public static void main(String[] args) throws FileNotFoundException {
             System.out.println(in.nextLine());
         }
         System.out.println("Hello world");
+        byte by = 0;
+        short sh = 1;
+        int i = 2;
+        float f = 2.1f;
+        double d = 2.2;
+        long l = 3;
+        char ch = '4';
+        boolean b = false;
+        System.out.println(thirdTask(1, 2, 3, 4));
+        System.out.println(fourthTask(i, 0));
+        System.out.println(fourthTask(i, 10));
+        fifthTask(i);
+        fifthTask(-1);
+        System.out.println(sixthTask(i));
+        seventhTask("Фёдор");
+        eighthTask(2000);
+        eighthTask(2001);
+    }
+    static double thirdTask(double a, double b, double c, double d) {
+        return a * (b + (c / d));
+    }
+
+    static boolean fourthTask(double x, double y) {
+        boolean q = false;
+        x += y;
+        if (x >= 10 && x <= 20)
+            q = true;
+        return q;
+    }
+
+    static void fifthTask(int x) {
+        if (x < 0) {
+            System.out.println("Число отрицательное");
+        } else {
+            System.out.println("Число положительное");
+        }
+    }
+
+    static boolean sixthTask(int x) {
+        if (x < 0)
+            return true;
+        else
+            return false;
+    }
 
+    static void seventhTask(String str) {
+        System.out.println("«Привет, " + str + "!»");
+    }
+
+    static void eighthTask(int year) {
+        if (year % 4 == 0 &&((year % 100 != 0) || (year % 400 == 0))) {
+            System.out.println("Год високосный");
+        }else {
+            System.out.println("Год не високосный");
+        }
     }
 }