diff --git a/src/History.java b/src/History.java
new file mode 100644
index 0000000..fcd9b7c
--- /dev/null
+++ b/src/History.java
@@ -0,0 +1,16 @@
+import java.util.*;
+
+public class History {
+	private Total total;
+	private List<Integer> value = new ArrayList<>();
+	public void updatePayment(int payment) {
+		this.value.add(0, payment);
+		total.updateHistory(value);
+	}
+	public History(Total total) {
+		this.total = total;
+	}
+	public List<Integer> getValue() {
+		return value;
+	}
+}
\ No newline at end of file
diff --git a/src/POS.java b/src/POS.java
new file mode 100644
index 0000000..decefac
--- /dev/null
+++ b/src/POS.java
@@ -0,0 +1,29 @@
+import java.util.*;
+
+public class POS {
+	private Points points;
+	private Total total;
+	private History history;
+	private Payment payment;
+	public POS() {
+		points = new Points();
+		total = new Total();
+		history = new History(total);
+		payment = new Payment(points,history);
+	}
+	public void purchase(int x) {
+		this.payment.purchase(x);
+	}
+	public int getTotal() {
+		return total.getValue();
+	}
+	public int getPayment() {
+		return payment.getValue();
+	}
+	public List<Integer> getHistory() {
+		return history.getValue();
+	}
+	public int getPoints() {
+		return points.getValue();
+	}
+}
\ No newline at end of file
diff --git a/src/Payment.java b/src/Payment.java
new file mode 100644
index 0000000..b5b6be6
--- /dev/null
+++ b/src/Payment.java
@@ -0,0 +1,19 @@
+import java.util.*;
+
+public class Payment {
+	private Points points;
+	private History history;
+	private int value;
+	public Payment(Points points, History history) {
+		this.points = points;
+		this.history = history;
+	}
+	public void purchase(int x) {
+		this.value = x;
+		points.updatePayment(value);
+		history.updatePayment(value);
+	}
+	public int getValue() {
+		return value;
+	}
+}
\ No newline at end of file
diff --git a/src/Points.java b/src/Points.java
new file mode 100644
index 0000000..c776197
--- /dev/null
+++ b/src/Points.java
@@ -0,0 +1,11 @@
+import java.util.*;
+
+public class Points {
+	private int value;
+	public void updatePayment(int payment) {
+		value = (int)Math.floor((payment*0.05));
+	}
+	public int getValue() {
+		return value;
+	}
+}
\ No newline at end of file
diff --git a/src/Total.java b/src/Total.java
new file mode 100644
index 0000000..27996b5
--- /dev/null
+++ b/src/Total.java
@@ -0,0 +1,15 @@
+import java.util.*;
+
+public class Total {
+	private int value;
+	public void updateHistory(List<Integer> history) {
+		Integer temp_sum1 = 0;
+		for (Integer x: history) {
+			temp_sum1 += x;
+		}
+		value = temp_sum1;
+	}
+	public int getValue() {
+		return value;
+	}
+}
\ No newline at end of file