1주차 Assignment - 박연지

parkyeonji/first-java-assignment/.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

parkyeonji/first-java-assignment/first-java-assignment.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>

parkyeonji/first-java-assignment/src/assignments/Test1.java

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+package assignments;
+
+// 다음 조건을 만족하도록 Cylinder 클래스를 작성합니다.
+class Cylinder {
+
+	// 원주율 3.14를 정적 상수 PI로 선언과 동시에 초기화
+    static final double PI = 3.14;
+
+    // 정수형 원의 중심 좌표 x, y를 선언
+    int x, y;
+
+    // 실수형 원의 반지름 r을 선언
+    double r;
+
+    // 정수형 원기둥의 높이 height를 10으로 선언과 동시에 초기화
+    int height = 10;
+
+	// 생성자1: 정수 인자 x, y 와 실수 인자 r을 전달 받아서 해당 필드 값을 초기화
+    public 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
+    public Cylinder(int x, int y, double r, int height) {
+        this.x = x;
+        this.y = y;
+        this.height = height;
+        this.r = r;
+    }
+
+	// circleArea 메서드: PI를 이용하여 원의 면적 반환
+    double circleArea() {
+        return r * r * PI;
+    }
+
+    // volume 메서드: 면적과 높이를 이용하여 부피를 반환
+    double volume() {
+        return r * r * PI * height;
+    }
+
+    // surfaceArea 메서드: PI를 이용하여 원기둥의 겉넓이를 반환
+    double surfaceArea() {
+        return (r * r * PI * 2) + (2 * PI * r * height);
+    }
+
+    // move 메서드: 정수 인자 dx, dy를 전달 받아서 원의 중심 좌표를 이동
+    // - 예: 필드 x가 1이고 dx가 10이면 x는 11로 변경되어야 함
+    // 객체 자신을 반환
+    Cylinder move(int dx, int dy) {
+        this.x += dx;
+        this.y += dy;
+
+        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());
+	}
+}

parkyeonji/first-java-assignment/src/assignments/assignments.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://$MODULE_DIR$" isTestSource="false" packagePrefix="assignments" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

parkyeonji/first-java-assignment/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 scanner = new Scanner(System.in);
+
+        int N = scanner.nextInt();
+        int M = scanner.nextInt();
+
+        int i, j, k;
+
+        int array[] = new int[N];
+
+        for(int x=0;x<M;x++) {
+            i = scanner.nextInt();
+            j = scanner.nextInt();
+            k = scanner.nextInt();
+
+            for(int l=i-1;l<j;l++) {
+                array[l] = k;
+            }
+        }
+
+        for(int y=0;y<N;y++) {
+            System.out.print(array[y] + " ");
+        }
+    }
+}

parkyeonji/first-java-assignment/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 scanner = new Scanner(System.in);
+
+        int T = scanner.nextInt();
+        int A,B;
+
+        for(int i=1;i<=T;i++) {
+            A = scanner.nextInt();
+            B = scanner.nextInt();
+
+            System.out.println("Case #" + i + ": " + (A+B));
+        }
+
+        scanner.close();
+    }
+}

parkyeonji/first-java-assignment/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 scanner = new Scanner(System.in);
+
+        int num = scanner.nextInt();
+
+        for(int i=1;i<=num;i++) {
+            for(int j=num;j>i;j--) {
+                System.out.print(" ");
+            }
+            for(int k=0;k<i;k++) {
+                System.out.print("*");
+            }
+            System.out.println();
+        }
+
+        scanner.close();
+    }
+}

parkyeonji/first-java-assignment/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) {
+        Scanner scanner = new Scanner(System.in);
+
+        int num1 = scanner.nextInt();
+        int num2 = scanner.nextInt();
+
+        System.out.println(num1 * (num2%10));
+        System.out.println(num1 * ((num2 % 100)/10));
+        System.out.println(num1 * (num2/100));
+        System.out.println(num1 * num2);
+
+        scanner.close();
+    }
+}

parkyeonji/first-java-assignment/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 scanner = new Scanner(System.in);
+
+        int H = scanner.nextInt();
+        int M = scanner.nextInt();
+
+        if(M<45) {
+            if(H==0) {
+                H += 23;
+                M += 60;
+                M -= 45;
+                System.out.println(H + " " + M);
+            }
+            else {
+                H -= 1;
+                M += 60;
+                M -= 45;
+                System.out.println(H + " " + M);
+            }
+        }
+        else{
+            M -= 45;
+            System.out.println(H + " " + M);
+        }
+        scanner.close();
+    }
+}

parkyeonji/first-java-assignment/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 scanner = new Scanner(System.in);
+        int T = scanner.nextInt();
+        scanner.nextLine();
+
+        for(int i=0;i<T;i++) {
+            String str = scanner.nextLine();
+            System.out.println(str.charAt(0) + "" + str.charAt(str.length()-1));
+        }
+
+        scanner.close();
+    }
+}