anoterCode

src/main/java/Amazon.java

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+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.Set;
+
+public class Amazon {
+  public static void main(String[] args) {
+    int x = 0;
+    int[] ar = { 3, 4, 4, 4, 3, 3, 3, 3, 6, 6, 6, 6, 1, 1, 1, 1, 9 };
+    ArrayList<Integer> al = new ArrayList<>();
+    for(int i : ar){
+      al.add(ar[i]);
+      if(!al.contains(ar[i])){
+        al.add(ar[i]);
+        ++x;
+        for(int j = i + 1; j < ar.length; j++){
+          if(ar[i] == ar[j]){
+            x++;
+          }
+        }
+        System.out.println(ar[i]);
+        System.out.println(x);
+      }
+    }
+  }
+}

src/main/java/Construct.java

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+public class Construct {
+  int year;
+  String model;
+  String make;
+
+  public Construct() {
+
+  }
+
+  public void carMake(String make, String model, int year) {
+    this.model = model;
+    this.make = make;
+    this.year = year;
+    System.out.println("My car by " + year + " is " + make + " - " + model);
+  }
+
+  public static void main(String[] args) {
+    Construct car = new Construct();
+    car.carMake("Audi", "RS6", 2025);
+  }
+}