DEBTOLEE Blog

package kr.ac.jj.java201562054; import java.util.Scanner; public class S007_Sungjuk { public static void main(String[] args) { // TODO Auto-generated method stub HighStudent hs = new HighStudent(); hs.Input(); hs.Print(); HighStudent hs2 = new HighStudent(100,99,100); hs2.Print(); } } class HighStudent{ String name = "No Name";//이름 int kor;//국어성적 int eng;//영어성적 int mat;//수학성적 int tot;//합계 double..

package kr.ac.jj.java201562054; import java.util.Scanner; public class S003_ContactsClass2 { public static void main(String[] args) { // TODO Auto-generated method stub Friend f = new Friend(); f.Input(); f.Print(); Book b = new Book(); b.BInput(); b.BPrint(); } } class Book { String title, author, publisher;// 제목 저자 출판사 int price; // 가격 Scanner scan = new Scanner(System.in); public void BInput(..

package kr.ac.jj.java201562054; import java.util.Scanner; public class S003_ContactsClass1 { public static void main(String[] args) { // TODO Auto-generated method stub Person p = new Person(); Person r = new Person(); p.Input(); r.Input(); p.Print(); r.Print(); }} class Person { String name; String phone; int speed_dial; public void Input() { Scanner scan = new Scanner(System.in); System.out.pr..

package kr.ac.jj.java201562054; import java.util.Scanner; public class S003_Contacts { public static void main(String[] args) { // TODO Auto-generated method stub Scanner scan = new Scanner(System.in); System.out.print("이름: "); String name = scan.next(); System.out.print("휴대폰: "); String phone = scan.next(); System.out.print("단축번호: "); int speed_dial = scan.nextInt(); System.out.println("이름 : "+..

package kr.ac.jj.java201562054; import java.util.Scanner; public class T002_SmartPhoneContact { public static void main(String[] args) { // TODO Auto-generated method stub Scanner scan = new Scanner(System.in); String name,phone; int speed_dial; System.out.println("==연락처 입력=="); System.out.print("이름:"); name = scan.next(); System.out.print("휴대폰:"); phone = scan.next(); System.out.print("단축번호:");..

논리 타입 boolean / 1byte (true, false) 문자 타입 char / 2byte (uricode) 정수 타입 byte / 1byte (-128~127 short / 2byte (-32768~32767) int / 4byte (-2147483648~2147483647) 21억 long / 8byte (-9223372036854775808) 실수 타입 float / 4byte (-3.4E38~3.4E38) double / 8byte (-1.7E308~1.7E308) 문자열 String 클래스형에서도 String 클래스는 조금 특별합니다. 이 클래스는 참조형에 속하지만 기본적인 사용은 기본형처럼 사용합니다. 그리고 불변하는immutable 객체입니다. String 클래스에는 값을 변경해주는 ..

package kr.ac.jj.java201562054; import java.util.Scanner; public class T002_AreaCircle { public static void main(String[] args) { // TODO Auto-generated method stub Scanner scan = new Scanner(System.in); System.out.println("==원의 넓이 계산 프로그램=="); System.out.print("반지름(r)="); double radius1 = scan.nextDouble(); System.out.print("반지름 "+radius1+"(r)인 원의 넓이는 "+(radius1*radius1*3.14)); } }

package kr.ac.jj.java201562054; import java.util.Scanner; public class T002_AreaRectangle { public static void main(String[] args) { // TODO Auto-generated method stub Scanner scan = new Scanner(System.in); System.out.println("==사각형 넓이 계산 프로그램=="); System.out.print("가로(cm)="); int width1 = scan.nextInt(); System.out.print("세로(cm)="); int hight1 = scan.nextInt(); System.out.print("가로 "+width1+"cm..

T002_AdditionDouble 실수형 합계 package kr.ac.jj.java201562054; import java.util.Scanner; public class T002_AdditionDouble { public static void main(String[] args) { // TODO Auto-generated method stub Scanner scan = new Scanner(System.in); System.out.println("첫번째 숫자는?"); double a = scan.nextDouble(); System.out.println("두번째 숫자는?"); double b = scan.nextDouble(); double c = a + b; System.out.println(a+..

소스코드 package kr.ac.jj.Java201562054; import java.util.Scanner; public class S002_Addition { public static void main(String[] args) { // TODO Auto-generated method stub Scanner scan = new Scanner(System.in); int a = scan.nextInt(); int b = scan.nextInt(); int c = a+b; System.out.println("합은"+c); } }