diff --git a/src/src/SeulBi/Car.java b/src/src/SeulBi/Car.java
new file mode 100644
index 0000000..ab62a7c
--- /dev/null
+++ b/src/src/SeulBi/Car.java
@@ -0,0 +1,51 @@
+package SeulBi;
+
+public class Car {
+
+    static Integer WHEEL_COUNT = 4;
+    private String color;
+    private String brand;
+    private Integer maxSpeed;
+    private Integer currentSpeed;
+    private String fuel;
+
+    public Car(String inputColor){
+        this.color = inputColor;
+        this.brand = "테슬라";
+        this.maxSpeed = 1;
+        this.fuel = "전기";
+        currentSpeed = 0;
+    }
+
+    public Car(String inputColor, String inputBrand, Integer maxSpeed, String fuel){
+        this.color = inputColor;
+        this.brand = inputBrand;
+        this.maxSpeed = maxSpeed;
+        this.fuel = fuel;
+        currentSpeed = 0; // 생성 시 굳이 필요 없는 것은 초기화하여도 됨
+    }
+
+    public String 무슨색차니(){
+        return this.color;
+    }
+
+    public String 무슨브랜드와무슨색을가지고있니(){
+        System.out.println("브랜드는 " + this.brand);
+        System.out.println("색은 " + this.color +"입니다.");
+
+        return this.color;
+    }
+
+    public Integer 가속하기(Integer plusSpeed){
+        this.currentSpeed += plusSpeed;
+        return currentSpeed;
+    }
+
+    public Integer 감속하기(Integer minusSpeed){
+        if(this.currentSpeed <= 0){
+            System.out.println("이미 속도가 0입니다.");
+        } else { this.currentSpeed -= minusSpeed;}
+
+        return currentSpeed;
+    }
+}
diff --git a/src/src/SeulBi/SunCream.java b/src/src/SeulBi/SunCream.java
new file mode 100644
index 0000000..cf6bef7
--- /dev/null
+++ b/src/src/SeulBi/SunCream.java
@@ -0,0 +1,100 @@
+package SeulBi;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+
+public class SunCream {
+    private String brand; // 회사 이름
+    private String productName; // 상품 이름
+    private Integer sunProtectionFactor = 50; // 자외선 차단 지수
+    private String formulation; // 제형
+    private Double millilitre; // 용량
+    private Double remainingMillilitre; // 남은 양
+    private final Integer effectTimeOfSPA = sunProtectionFactor*15; // 자외선 차단 지속 시간(분)
+    private Integer price; // 가격
+    private static final Double recommendMl = 0.8;
+
+    private List<SunCream> basket = new ArrayList<>();
+
+    SunCream(String brand, String productName){
+        this.brand = brand;
+        this.productName = productName;
+        this.formulation = "무기자차";
+        this.millilitre = 50.0;
+        this.remainingMillilitre = this.millilitre;
+        this.price = 8000;
+    }
+
+    SunCream(String brand, String productName, String formulation, Integer spf, Double millilitre, Integer price){
+        this.brand = brand;
+        this.productName = productName;
+        this.formulation = formulation;
+        this.sunProtectionFactor = spf;
+        this.millilitre = millilitre;
+        this.remainingMillilitre = this.millilitre;
+        this.price = price;
+    }
+
+    public void buySunCream(){
+        System.out.println("구매가 완료되었습니다.");
+        System.out.println();
+        System.out.println(brand + " 회사의 [" + productName +"] 상품을 선택하셨습니다.");
+        System.out.println("제형은 " + formulation + "이며 자외선 차단 지수는 " + sunProtectionFactor+"입니다.");
+        System.out.println("용량은 " + millilitre +"ml이고, 가격은 " + price + "원입니다." );
+        System.out.println("----------------------------------------------------------");
+
+        basket.add(new SunCream(brand, productName, formulation, sunProtectionFactor, millilitre, price));
+    }
+
+    public Double useSuncream(Double usingMillilitre){
+        if(Objects.equals(remainingMillilitre,0.0)){
+            System.out.println("남은 선크림이 없습니다. 새로운 선크림을 구입해 보세요!");
+            System.out.println("----------------------------------------------------------");
+        } else if (millilitre - usingMillilitre < 0.0){
+            System.out.println("남은 용량보다 많은 양을 사용하실 수 없습니다.");
+            System.out.println("----------------------------------------------------------");
+        } else if(millilitre - usingMillilitre >= 0.0) {
+            remainingMillilitre = millilitre - usingMillilitre;
+            if(usingMillilitre < recommendMl){
+                System.out.println("선크림을 " + usingMillilitre + "ml 사용하셨습니다.");
+                System.out.println("성인의 선크림 권장 용량은 1회당 최소 " + recommendMl + "ml이므로 자외선 차단 시간 측정이 어렵습니다.");
+                System.out.println("다음 번에는 권장 용량을 지켜 사용하시는 것을 추천드립니다.");
+                System.out.println("남은 선크림 용량은 "+ remainingMillilitre+"ml입니다.");
+                System.out.println("즐거운 외출 되세요!");
+                System.out.println("----------------------------------------------------------");
+            } else {
+                System.out.println("선크림을 " + usingMillilitre + "ml 사용하셨습니다.");
+                System.out.println("자외선 차단 지속 시간은 " + effectTimeOfSPA + "분이며 남은 선크림 용량은 "+ remainingMillilitre+"ml입니다.");
+                System.out.println("즐거운 외출 되세요!");
+                System.out.println("----------------------------------------------------------");
+            }
+        }
+
+        return remainingMillilitre;
+    }
+
+    public void checkSuncream(){
+        System.out.println(productName + "의 자외선 차단 지수는 " + sunProtectionFactor + "이며 남은 용량은 " + remainingMillilitre + "ml입니다." );
+        System.out.println("----------------------------------------------------------");
+    }
+
+    public static void main(String[] args) {
+        // 메서드 확인용 객체 생성
+        SunCream mySunCream1 = new SunCream("에뛰드","순정 선크림");
+        SunCream mySunCream2 = new SunCream("라운드랩","자작나무 수분 선크림","무기자차",50,50.0,12000);
+
+        mySunCream1.buySunCream();
+        mySunCream2.buySunCream();
+
+        mySunCream1.useSuncream(0.5);
+        mySunCream2.useSuncream(50.0);
+
+        mySunCream1.useSuncream(0.8);
+        mySunCream2.useSuncream(1.0);
+
+        mySunCream1.checkSuncream();
+
+
+    }
+}