1주차 Assignment - 한장수

1주차_과제/.gitignore

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+### IntelliJ IDEA ###
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

1주차_과제/1W_Homework.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

1주차_과제/src/BJ_10810/Main.java

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+package BJ_10810;
+import java.util.Scanner;
+public class Main
+{
+    public static void main(String[] args)
+    {
+        Scanner scanner1 = new Scanner(System.in);
+
+        int basketNum = scanner1.nextInt(); // 바구니 개수
+        int repeatNum = scanner1.nextInt(); // 반복활 횟수
+        int[] basket = new int[basketNum + 1]; // basket[0 ~ basketNum]
+
+        for (int a = 0; a < repeatNum; a++) // i번 바구니부터 j번 바구니까지 k번 공을 넣음
+        {
+            int i = scanner1.nextInt();
+            int j = scanner1.nextInt();
+            int k = scanner1.nextInt();
+
+            // 여기서부터 참조했음, https://www.acmicpc.net/board/view/128224
+            for(int b = i; b <= j; b++) // i : 최솟값(변화x), j : 최댓값(변화x) / b : 범위(변화O)
+                basket[b] = k;
+        }
+        for (int c = 1; c <= basketNum; c++)
+            System.out.printf("%d ", basket[c]);
+    }
+}

1주차_과제/src/BJ_11021/Main.java

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+package BJ_11021;
+
+import java.util.Scanner;
+
+public class Main
+{
+    public static void main(String[] args)
+    {
+        Scanner scanner1 = new Scanner(System.in);
+        int T = scanner1.nextInt();
+        for (int i = 1; i <= T; i++)
+        {
+            int A = scanner1.nextInt();
+            int B = scanner1.nextInt();
+            System.out.printf("Case #" + i + ": %d\n", A + B);
+        }
+    }
+}

1주차_과제/src/BJ_2439/Main.java

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+package BJ_2439;
+
+import java.util.Scanner;
+public class Main
+{
+    public static void main(String[] args)
+    {
+        Scanner scanner1 = new Scanner(System.in);
+        int repeatNum = scanner1.nextInt();
+
+        for(int i = 0; i < repeatNum; i++)
+        {
+            for (int j = repeatNum - 1; j > i; j--)
+            {
+                System.out.printf(" ");
+            }
+
+            for(int j = 0; j < i + 1; j++)
+            {
+                System.out.printf("*");
+            }
+            System.out.printf("\n");
+        }
+    }
+}

1주차_과제/src/BJ_2588/Main.java

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+package BJ_2588;
+
+import java.util.Scanner;
+
+public class Main
+{
+    public static void main(String[] args)
+    {
+        int input1, input2;
+        Scanner scanner1 = new Scanner(System.in);
+
+        input1 = scanner1.nextInt();
+        input2 = scanner1.nextInt();
+
+        System.out.printf("%d\n", input2 % 100 % 10 * input1);
+        System.out.printf("%d\n", input2 % 100 / 10 * input1);
+        System.out.printf("%d\n", input2 / 100 * input1);
+        System.out.printf("%d\n", input1 * input2);
+
+        /*
+        int number1, number2, B1, B2, B3; char C1, C2, C3; String input1, input2;
+        Scanner scanner1 = new Scanner(System.in);
+
+        input1 = scanner1.nextLine();
+        number1 = Integer.parseInt(input1);
+        input2 = scanner1.nextLine();
+
+        C1 = input2.charAt(0); B1 = Character.getNumericValue(C1);
+        C2 = input2.charAt(1); B2 = Character.getNumericValue(C2);
+        C3 = input2.charAt(2); B3 = Character.getNumericValue(C3);
+        number2 = Integer.parseInt(input2);
+
+        System.out.printf("%d\n", B3 * number1);
+        System.out.printf("%d\n", B2 * number1);
+        System.out.printf("%d\n", B1 * number1) ;
+        System.out.printf("%d\n",number1 * number2);
+         */
+    }
+}

1주차_과제/src/BJ_2884/Main.java

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+package BJ_2884;
+
+import java.util.Scanner;
+
+public class Main
+{
+    public static void main(String[] args)
+    {
+        Scanner scanner1 = new Scanner(System.in);
+        int H = scanner1.nextInt();
+        int M = scanner1.nextInt();
+
+        M = M - 45;
+        if (H == 0 && M < 0)
+        {
+            H = 23;
+            M = 60 + M;
+        }
+        else if (H != 0 && M < 0)
+        {
+            H--;
+            M = 60 + M;
+        }
+        System.out.printf("%d %d\n", H, M);
+    }
+}

1주차_과제/src/BJ_9086/Main.java

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+package BJ_9086;
+
+import java.util.Scanner;
+public class Main
+{
+    public static void main(String[] args)
+    {
+        Scanner scanner1 = new Scanner(System.in);
+
+        int repeatNum = scanner1.nextInt();
+        for(int i = 0; i < repeatNum; i++)
+        {
+            String input = scanner1.next();
+
+            char input1 = input.charAt(0);
+            char input2 = input.charAt(input.length() - 1);
+
+            System.out.printf("%c%c\n",input1, input2);
+        }
+    }
+}

1주차_과제/src/assignments/Test1.java

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+package assignments;
+
+class Cylinder
+{
+    public static final double PI = 3.14; // 원주율 3.14를 정적 상수 PI로 선언과 동시에 초기화
+    int x, y;   // 정수형 원의 중심 좌표 x, y를 선언
+    double r;   // 실수형 원의 반지름 r을 선언
+    int height = 10;    // 정수형 원기둥의 높이 변수 height을 10으로 선언과 동시에 초기화
+
+    // 생성자1: 정수 인자 x, y 와 실수 인자 r을 전달 받아서 해당 필드 값을 초기화
+	Cylinder(int x, int y, double r) { this.x = x; this.y = y; this.r = r; }
+    // 생성자2: 정수 인자 x, y, height 와 실수 인자 r을 전달 받아서 해당 필드 값을 초기화
+    Cylinder(int x, int y, double r, int height) { this.x = x; this.y = y; this.r = r; this.height = height; }
+
+    double circleArea() { return PI * Math.pow(r, 2); }   // area 메서드: PI를 이용하여 원의 면적 반환
+    double volume() { return PI * Math.pow(r, 2) * height; }    // volume 메서드: 면적과 높이를 이용하여 부피를 반환
+    double surfaceArea() { return 2 * PI * r  * height + 2 * PI * Math.pow(r, 2); } // surfaceArea 메서드: PI를 이용하여 원기둥의 겉넓이를 반환
+
+    //move 메서드: 정수 인자 dx, dy를 전달 받아서 원의 중심 좌표를 이동 - 예: 필드 x가 1이고 dx가 10이면 x는 11로 변경되어야 함, 객체 자신을 반환함
+    Cylinder move(int dx, int dy)
+    {
+        x = dx + x; y = dy + y;
+        return this;
+    }
+	void print() { System.out.println("<"+x+","+y+":"+r+">");}
+}
+// 메인메서드 수행시 이렇게 출력되도록
+//<13,15:6.0>
+//113.04
+//1130.4
+//602.88
+//<17,25:10.0>
+//314.0
+//1570.0
+//942.0
+public class Test1
+{
+	public static void main(String[] args) {
+        Cylinder c1 = new Cylinder(3,5, 6);
+		c1.move(10,10).print();
+		System.out.println(c1.circleArea());
+        System.out.println(c1.volume());
+        System.out.println(c1.surfaceArea());
+
+        Cylinder c2 = new Cylinder(5,8, 10, 5);
+        c2.move(12,17).print();
+        System.out.println(c2.circleArea());
+        System.out.println(c2.volume());
+        System.out.println(c2.surfaceArea());
+	}
+}