COMPLETE LAB-1

Author: EmrahFidan

LAB1/.classpath

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-20">
+		<attributes>
+			<attribute name="module" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

LAB1/.project

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>LAB1</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

LAB1/.settings/org.eclipse.core.resources.prefs

@@ -0,0 +1,2 @@
+eclipse.preferences.version=1
+encoding/<project>=UTF-8

LAB1/.settings/org.eclipse.jdt.core.prefs

@@ -0,0 +1,14 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=20
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=20
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=20

LAB1/bin/CreateFigure.class

@@ -0,0 +1,72 @@
+import java.util.Scanner;
+
+public class CreateFigure {
+
+    public static void main(String[] args) {
+
+        while (true) {
+
+            int space = 0;
+            // Taking input from the user
+            Scanner value = new Scanner(System.in); // To take input from the user
+            System.out.println("Type 'q' to exit");
+            System.out.print("Please enter a positive integer:");
+            String number = value.nextLine();
+
+            System.out.println("Value:" + number);
+            System.out.println("--------------");
+            // Exit when 'q' is entered
+            if (number.equals("q")) {
+                System.out.println("Program is terminating");
+                break; // End of code
+            } else {
+                int n = Integer.parseInt(number); // Value should be an integer for the rest of the code
+
+                for (int i = n; i > 0; i = i - 2) { // Upper part of the shape
+
+                    for (int j = 0; j < space; j++) {
+                        System.out.print(" "); // Leading spaces on each line
+                    }
+
+                    space += 1;
+                    for (int j = 0; j < i; j++) {
+                        System.out.print("*");
+                    }
+                    System.out.println(); // To move to the next line
+                }
+
+                if (n % 2 == 0) { // Check for odd-even (even case)
+                    space -= 1;
+                    for (int i = 2; i <= n; i = i + 2) {
+
+                        for (int j = 0; j < space; j++) {
+                            System.out.print(" ");
+                        }
+
+                        space -= 1;
+
+                        for (int j = 0; j < i; j++) {
+                            System.out.print("*");
+                        }
+                        System.out.println();
+                    }
+                } else { // Odd case
+                    space -= 2;
+                    for (int i = 3; i <= n; i = i + 2) {
+
+                        for (int j = 0; j < space; j++) {
+                            System.out.print(" ");
+                        }
+
+                        space -= 1;
+
+                        for (int j = 0; j < i; j++) {
+                            System.out.print("*");
+                        }
+                        System.out.println();
+                    }
+                }
+            }
+        }
+    }
+}

LAB1/bin/PalindromeNumber.class

@@ -0,0 +1,48 @@
+import java.util.Scanner;
+
+public class PalindromeNumber {
+
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+        while (true) {
+            System.out.println("Write -1 to quit");
+            System.out.print("Enter a 7-digit number: ");
+            int inputNumber = scanner.nextInt();
+
+            if (inputNumber == -1) {
+                System.out.println("Program is terminating");
+                break;
+            }
+
+            if (isValidNumber(inputNumber)) {
+                if (isPalindrome(inputNumber)) {
+                    System.out.println(inputNumber + " is a palindrome!!!");
+                } else {
+                    System.out.println(inputNumber + " is not a palindrome.");
+                }
+            } else {
+                System.out.println("Number must be 7 digits.");
+            }
+            System.out.println();
+        }
+
+        scanner.close();
+    }
+
+    private static boolean isValidNumber(int number) {
+        String numberStr = Integer.toString(number);
+        return numberStr.length() == 7;
+    }
+
+    private static boolean isPalindrome(int number) {
+        String numberStr = Integer.toString(number);
+        int length = numberStr.length();
+
+        for (int i = 0; i < length / 2; i++) {
+            if (numberStr.charAt(i) != numberStr.charAt(length - 1 - i)) {
+                return false;
+            }
+        }
+        return true;
+    }
+}