exercise4

exercises/exercise4/EvenlyDivisible.java

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+import java.util.Scanner;
+
+public class EvenlyDivisible{
+    public static void main(String args[]) {
+        Scanner scan = new Scanner(System.in);
+        System.out.println("Enter number1!");
+        int number1 = scan.nextInt();
+        System.out.println("Enter number2!");
+        int number2 = scan.nextInt();
+
+        if (number1 == 0 || number2 == 0) {
+        System.out.println("YOU ENTERED 0 !");
+        } else if (number1 % number2 == 0) {
+            System.out.println("TRUE!");
+        } else {
+            System.out.print("FALSE!");
+        }
+    }
+}

exercises/exercise4/FloatEquals.java

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+import java.util.Scanner;
+
+public class FloatEquals {
+    public static void main(String args[]) {
+        Scanner scan = new Scanner(System.in);
+        System.out.println("Enter float1");
+        float float1 = scan.nextFloat();
+        System.out.println("Enter float2");
+        float float2 = scan.nextFloat();
+
+        System.out.println("Enter tolerance!");
+        double tolerance = scan.nextDouble();
+
+        if (Math.abs(float1 - float2) < tolerance)
+            System.out.println("EQUAL!");
+    }
+}

exercises/exercise4/isAlpha.java

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+import java.util.Scanner;
+
+public class isAlpha{
+    public static void main(String args[]) {
+        Scanner scan = new Scanner(System.in);
+        System.out.println("Enter ALPHA character!");
+        char value1 = scan.next().charAt(0);
+        int value2 = value1 - '0';
+        if (16 < value2 && value2 < 43 || 48 < value2 && value2 < 75)
+            System.out.println("TRUE!");
+    }
+}
+// In this code '0' = 48 so unicode - 48 is the output !!

exercises/exercise4/isAlpha2.java

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+import java.util.Scanner;
+
+public class isAlpha2 {
+    public static void main(String args[]) {
+        Scanner scan = new Scanner(System.in);
+        System.out.println("ENTER ALPHA CHARACTER !");
+        char character = scan.next().charAt(0);
+        int unicode = (int) character;
+        if (65 <= unicode && unicode <= 90 || 97 <= unicode && unicode <= 122)
+            System.out.println("TRUE!");
+    }
+}