\uc548\ub4dc\ub85c\uc774\ub4dc \uc571 \uac1c\ubc1c\uc5d0 \uc788\uc5b4 \uc790\ubc14(Java)\ub294 \uac00\uc7a5 \uc911\uc694\ud55c \ud504\ub85c\uadf8\ub798\ubc0d \uc5b8\uc5b4 \uc911 \ud558\ub098\uc785\ub2c8\ub2e4. \uad6c\uae00\uc774 \uc548\ub4dc\ub85c\uc774\ub4dc \ud50c\ub7ab\ud3fc\uc744 \ubc1c\uc804\uc2dc\ud0a4\ub294 \ub3d9\uc548, \uc790\ubc14\ub294 \uadf8 \ud575\uc2ec \uc5b8\uc5b4\ub85c \uc790\ub9ac\uc7a1\uc558\uc2b5\ub2c8\ub2e4. \uc790\ubc14\uc758 \uc7a5\uc810\uacfc \uae30\ubcf8 \uac1c\ub150\uc744 \uc774\ud574\ud558\uba74 \uc548\ub4dc\ub85c\uc774\ub4dc \uc571 \uac1c\ubc1c\uc5d0 \ud070 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4. \ubcf8 \uac15\uc88c\uc5d0\uc11c\ub294 \uc790\ubc14 \uc5b8\uc5b4\uc758 \uae30\ubcf8 \uac1c\ub150\ubd80\ud130 \uc2dc\uc791\ud574, \uc548\ub4dc\ub85c\uc774\ub4dc \uc571 \uac1c\ubc1c\uc744 \uc704\ud55c \uae30\ucd08\ubd80\ud130 \uc2ec\ud654\uae4c\uc9c0 \ub2e8\uacc4\uc801\uc73c\ub85c \uc124\uba85\ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n
\uc790\ubc14\ub294 \ubc94\uc6a9 \ud504\ub85c\uadf8\ub798\ubc0d \uc5b8\uc5b4\ub85c, 1995\ub144 \uc36c \ub9c8\uc774\ud06c\ub85c\uc2dc\uc2a4\ud15c\uc988(\ud604\uc7ac \uc624\ub77c\ud074)\uc5d0 \uc758\ud574 \uac1c\ubc1c\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uac1d\uccb4 \uc9c0\ud5a5 \ud504\ub85c\uadf8\ub798\ubc0d(OOP) \uc5b8\uc5b4\ub85c, \ucf54\ub4dc\ub97c \ub354 \uad6c\uc870\ud654\ub418\uace0 \uc7ac\uc0ac\uc6a9 \uac00\ub2a5\ud558\uac8c \ub9cc\ub4e4\uc5b4\uc90d\ub2c8\ub2e4. \uc790\ubc14\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uc8fc\uc694 \ud2b9\uc9d5\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n
\uc790\ubc14\uc758 \ubb38\ubc95\uc740 \uac04\ub2e8\ud558\uace0 \uc9c1\uad00\uc801\uc785\ub2c8\ub2e4. \uc608\uc81c \ucf54\ub4dc\ub97c \ud1b5\ud574 \uc790\ubc14\uc758 \uae30\ubcf8\uc801\uc778 \ubb38\ubc95\uc744 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n
\n\npublic class HelloWorld {\n public static void main(String[] args) {\n System.out.println(\"Hello, World!\");\n }\n}\n<\/code>\n <\/pre>\n\uc704 \ucf54\ub4dc\ub294 \uc790\ubc14\uc758 \uae30\ubcf8\uc801\uc778 \uad6c\uc870\ub97c \ubcf4\uc5ec\uc90d\ub2c8\ub2e4. \ud074\ub798\uc2a4\ub97c \uc815\uc758\ud558\uace0, main \uba54\uc11c\ub4dc\ub97c \ud1b5\ud574 \ud504\ub85c\uadf8\ub7a8\uc774 \uc2dc\uc791\ub429\ub2c8\ub2e4. System.out.println() \uba54\uc11c\ub4dc\ub294 \ucf58\uc194\uc5d0 \uba54\uc2dc\uc9c0\ub97c \ucd9c\ub825\ud558\ub294 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4.<\/p>\n
2.2 \ubcc0\uc218 \ubc0f \ub370\uc774\ud130 \ud0c0\uc785<\/h3>\n
\uc790\ubc14\uc5d0\ub294 \uae30\ubcf8\ud615 \ub370\uc774\ud130 \ud0c0\uc785\uacfc \ucc38\uc870\ud615 \ub370\uc774\ud130 \ud0c0\uc785\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uae30\ubcf8\ud615 \ub370\uc774\ud130 \ud0c0\uc785\uc73c\ub85c\ub294 int, float, double, char, boolean \ub4f1\uc774 \uc788\uc73c\uba70, \ucc38\uc870\ud615 \ub370\uc774\ud130 \ud0c0\uc785\uc740 \ud074\ub798\uc2a4\ub098 \ubc30\uc5f4\uacfc \uac19\uc774 \ubcf5\uc7a1\ud55c \ub370\uc774\ud130 \uad6c\uc870\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/p>\n
\n\npublic class VariableExample {\n public static void main(String[] args) {\n int age = 25;\n double height = 175.5;\n char initial = 'A';\n boolean isStudent = true;\n\n System.out.println(\"Age: \" + age);\n System.out.println(\"Height: \" + height);\n System.out.println(\"Initial: \" + initial);\n System.out.println(\"Is a student: \" + isStudent);\n }\n}\n<\/code>\n <\/pre>\n2.3 \uc5f0\uc0b0\uc790<\/h3>\n
\uc790\ubc14\uc5d0\uc11c\ub294 \ub2e4\uc591\ud55c \uc5f0\uc0b0\uc790\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub370\uc774\ud130\ub97c \ucc98\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\n- \uc0b0\uc220 \uc5f0\uc0b0\uc790: +, -, *, \/, %<\/li>\n
- \ube44\uad50 \uc5f0\uc0b0\uc790: ==, !=, >, <, >=, <=<\/li>\n
- \ub17c\ub9ac \uc5f0\uc0b0\uc790: &&, ||, !<\/li>\n<\/ul>\n
\n\npublic class OperatorExample {\n public static void main(String[] args) {\n int a = 10;\n int b = 20;\n boolean result;\n\n result = (a < b) && (b > 15);\n System.out.println(\"Result: \" + result);\n }\n}\n<\/code>\n <\/pre>\n2.4 \uc81c\uc5b4\ubb38<\/h3>\n
\uc81c\uc5b4\ubb38\uc740 \ud504\ub85c\uadf8\ub7a8\uc758 \ud750\ub984\uc744 \uc81c\uc5b4\ud558\ub294\ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc790\ubc14\uc5d0\ub294 \uc870\uac74\ubb38(if, switch)\uacfc \ubc18\ubcf5\ubb38(for, while, do-while)\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\n\npublic class ControlFlowExample {\n public static void main(String[] args) {\n int num = 5;\n\n if (num > 0) {\n System.out.println(num + \"\uc740 \uc591\uc218\uc785\ub2c8\ub2e4.\");\n } else {\n System.out.println(num + \"\uc740 \uc74c\uc218\uc785\ub2c8\ub2e4.\");\n }\n\n for (int i = 1; i <= 5; i++) {\n System.out.println(\"Iteration: \" + i);\n }\n }\n}\n<\/code>\n <\/pre>\n3. \uac1d\uccb4\uc9c0\ud5a5 \ud504\ub85c\uadf8\ub798\ubc0d(OOP)<\/h2>\n
\uac1d\uccb4\uc9c0\ud5a5 \ud504\ub85c\uadf8\ub798\ubc0d\uc740 \ubb38\uc81c\ub97c \uac1d\uccb4\uc758 \uad00\uc810\uc5d0\uc11c \ud574\uacb0\ud558\ub294 \ud328\ub7ec\ub2e4\uc784\uc785\ub2c8\ub2e4. \uc790\ubc14\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 OOP\uc758 4\uac00\uc9c0 \uc8fc\uc694 \ud2b9\uc131\uc744 \uc9c0\uc6d0\ud569\ub2c8\ub2e4. \ucea1\uc290\ud654, \uc0c1\uc18d, \ub2e4\ud615\uc131, \ucd94\uc0c1\ud654\uc785\ub2c8\ub2e4.<\/p>\n
3.1 \ud074\ub798\uc2a4\uc640 \uac1d\uccb4<\/h3>\n
\ud074\ub798\uc2a4\ub294 \uac1d\uccb4\ub97c \uc815\uc758\ud558\ub294 \uccadprint\uc785\ub2c8\ub2e4. \uac1d\uccb4\ub294 \ud074\ub798\uc2a4\ub97c \uae30\ubc18\uc73c\ub85c \uc0dd\uc131\ub41c \uc778\uc2a4\ud134\uc2a4\uc785\ub2c8\ub2e4.<\/p>\n
\n\nclass Dog {\n String name;\n int age;\n\n void bark() {\n System.out.println(name + \"\uac00 \uba4d\uba4d\ud569\ub2c8\ub2e4.\");\n }\n}\n\npublic class Main {\n public static void main(String[] args) {\n Dog dog = new Dog();\n dog.name = \"\ubb49\uce58\";\n dog.age = 3;\n dog.bark();\n }\n}\n<\/code>\n <\/pre>\n3.2 \uc0c1\uc18d<\/h3>\n
\uc0c1\uc18d\uc740 \uae30\uc874 \ud074\ub798\uc2a4(\ubd80\ubaa8 \ud074\ub798\uc2a4)\uc758 \uc18d\uc131\uacfc \uba54\uc11c\ub4dc\ub97c \uc790\uc2dd \ud074\ub798\uc2a4\uac00 \ubb3c\ub824\ubc1b\ub294 \uae30\ub2a5\uc785\ub2c8\ub2e4.<\/p>\n
\n\nclass Animal {\n void eat() {\n System.out.println(\"\uba39\uace0 \uc788\uc2b5\ub2c8\ub2e4.\");\n }\n}\n\nclass Cat extends Animal {\n void meow() {\n System.out.println(\"\uc57c\uc639!\");\n }\n}\n\npublic class Main {\n public static void main(String[] args) {\n Cat cat = new Cat();\n cat.eat();\n cat.meow();\n }\n}\n<\/code>\n <\/pre>\n3.3 \ub2e4\ud615\uc131<\/h3>\n
\ub2e4\ud615\uc131\uc740 \uac19\uc740 \uc778\ud130\ud398\uc774\uc2a4\ub97c \ud1b5\ud574 \uc11c\ub85c \ub2e4\ub978 \uad6c\ud604\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \uae30\ub2a5\uc785\ub2c8\ub2e4.<\/p>\n
\n\nclass Bird {\n void fly() {\n System.out.println(\"\uc0c8\uac00 \ub0a0\uace0 \uc788\uc2b5\ub2c8\ub2e4.\");\n }\n}\n\nclass Ostrich extends Bird {\n void fly() {\n System.out.println(\"\ud0c0\uc870\ub294 \ub0a0 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.\");\n }\n}\n\npublic class Main {\n public static void main(String[] args) {\n Bird myBird = new Ostrich();\n myBird.fly();\n }\n}\n<\/code>\n <\/pre>\n3.4 \ucd94\uc0c1 \ud074\ub798\uc2a4\uc640 \uc778\ud130\ud398\uc774\uc2a4<\/h3>\n
\ucd94\uc0c1 \ud074\ub798\uc2a4\ub294 \uc644\uc804\ud558\uc9c0 \uc54a\uc740 \ud074\ub798\uc2a4\uc774\uba70, \uc778\ud130\ud398\uc774\uc2a4\ub294 \ud074\ub798\uc2a4\uac00 \uad6c\ud604\ud574\uc57c \ud558\ub294 \uba54\uc11c\ub4dc\uc758 \ubaa8\uc74c\uc785\ub2c8\ub2e4.<\/p>\n
\n\nabstract class Shape {\n abstract void draw();\n}\n\nclass Circle extends Shape {\n void draw() {\n System.out.println(\"\uc6d0 \uadf8\ub9ac\uae30\");\n }\n}\n\npublic class Main {\n public static void main(String[] args) {\n Shape shape = new Circle();\n shape.draw();\n }\n}\n<\/code>\n <\/pre>\n4. \uc548\ub4dc\ub85c\uc774\ub4dc \uc571 \uac1c\ubc1c\uacfc \uc790\ubc14<\/h2>\n
\uc774\ubc88\uc5d0\ub294 \uc790\ubc14\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc548\ub4dc\ub85c\uc774\ub4dc \uc571\uc744 \uac1c\ubc1c\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc548\ub4dc\ub85c\uc774\ub4dc \uc2a4\ud29c\ub514\uc624\ub97c \uc124\uce58\ud558\uace0, \uac04\ub2e8\ud55c \uc571\uc744 \ub9cc\ub4e4\uc5b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n
4.1 \uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c \ud658\uacbd \uc124\uc815<\/h3>\n
\uc548\ub4dc\ub85c\uc774\ub4dc \uc571 \uac1c\ubc1c\uc744 \uc704\ud574\uc11c\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc \uc2a4\ud29c\ub514\uc624\ub97c \uc124\uce58\ud574\uc57c \ud569\ub2c8\ub2e4. \uc548\ub4dc\ub85c\uc774\ub4dc \uc2a4\ud29c\ub514\uc624 \uc124\uce58 \ud6c4, \uc0c8 \ud504\ub85c\uc81d\ud2b8\ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4.<\/p>\n
4.2 \uac04\ub2e8\ud55c “Hello World” \uc571 \ub9cc\ub4e4\uae30<\/h3>\n
\uc6b0\uc120 \uc548\ub4dc\ub85c\uc774\ub4dc \uc2a4\ud29c\ub514\uc624\uc5d0\uc11c \uc0c8 \ud504\ub85c\uc81d\ud2b8\ub97c \uc0dd\uc131\ud55c \ud6c4, \uae30\ubcf8 \uc81c\uacf5\ub418\ub294 “Hello World” \uc571\uc744 \uc0b4\ud3b4\ubcf4\uc138\uc694.<\/p>\n
\n\npackage com.example.helloworld;\n\nimport android.os.Bundle;\nimport android.widget.TextView;\nimport androidx.appcompat.app.AppCompatActivity;\n\npublic class MainActivity extends AppCompatActivity {\n @Override\n protected void onCreate(Bundle savedInstanceState) {\n super.onCreate(savedInstanceState);\n setContentView(R.layout.activity_main);\n\n TextView textView = findViewById(R.id.text_view);\n textView.setText(\"Hello, Android!\");\n }\n}\n<\/code>\n <\/pre>\n\uc704 \ucf54\ub4dc\ub294 \uba54\uc778 \uc561\ud2f0\ube44\ud2f0\uc5d0 “Hello, Android!”\ub77c\ub294 \ud14d\uc2a4\ud2b8\ub97c \ud45c\uc2dc\ud569\ub2c8\ub2e4. <\/p>\n
4.3 \ub808\uc774\uc544\uc6c3 \uc124\uc815<\/h3>\n
\uc548\ub4dc\ub85c\uc774\ub4dc\uc758 UI\ub294 \uc8fc\ub85c XML\ub85c \uc815\uc758\ub429\ub2c8\ub2e4. \uc544\ub798\ub294 \uae30\ubcf8 \ub808\uc774\uc544\uc6c3 \ud30c\uc77c \uc608\uc2dc\uc785\ub2c8\ub2e4.<\/p>\n
\n\n\n\n <\/textview>\n<\/linearlayout>\n<\/code>\n <\/pre>\n5. \uacb0\ub860<\/h2>\n
\ubcf8 \uac15\uc88c\uc5d0\uc11c\ub294 \uc790\ubc14 \uc5b8\uc5b4\uc758 \uae30\ubcf8 \uac1c\ub150\ubd80\ud130 \uac1d\uccb4\uc9c0\ud5a5 \ud504\ub85c\uadf8\ub798\ubc0d, \uadf8\ub9ac\uace0 \uc548\ub4dc\ub85c\uc774\ub4dc \uc571 \uac1c\ubc1c\uc5d0 \uc774\ub974\uae30\uae4c\uc9c0 \ub2e4\uc591\ud55c \ub0b4\uc6a9\uc744 \ub2e4\ub8e8\uc5c8\uc2b5\ub2c8\ub2e4. \uc790\ubc14\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc5d0 \uc788\uc5b4 \ub9e4\uc6b0 \uc911\uc694\ud55c \uc5b8\uc5b4\uc774\uba70, \ucda9\ubd84\ud55c \uc774\ud574\uc640 \uc5f0\uc2b5\uc774 \ud544\uc694\ud569\ub2c8\ub2e4. \uc790\ubc14\uc640 \uc548\ub4dc\ub85c\uc774\ub4dc\uc5d0 \ub300\ud55c \ub354 \uae4a\uc740 \uc774\ud574\ub97c \uc704\ud574 \uacc4\uc18d \uacf5\ubd80\ud558\uace0 \uc2e4\uc2b5\ud558\uc2ed\uc2dc\uc624. \ub2e4\uc74c \uac15\uc88c\uc5d0\uc11c\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc \uc571\uc758 \ub2e4\uc591\ud55c \uae30\ub2a5 \uad6c\ud604\uc5d0 \ub300\ud574 \ub2e4\ub8e8\ub3c4\ub85d \ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n
6. \ucc38\uace0 \uc790\ub8cc<\/h2>\n\n- \uc790\ubc14 \ud504\ub85c\uadf8\ub7a8\ubc0d \uc5b8\uc5b4: https:\/\/www.oracle.com\/java\/technologies\/javase\/javase-jdk8-downloads.html<\/li>\n
- \uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \uc0ac\uc774\ud2b8: https:\/\/developer.android.com\/<\/li>\n
- \uac1d\uccb4\uc9c0\ud5a5 \ud504\ub85c\uadf8\ub798\ubc0d \uc6d0\ub9ac: https:\/\/www.tutorialspoint.com\/java\/java_object_oriented.htm<\/li>\n<\/ul>\n
<\/body><\/p>\n","protected":false},"excerpt":{"rendered":"