Study Java

import java.io.*; public class WriterTest { String path = WriterTest.class.getResource("test.txt").getPath(); Writer writer; Reader reader; public WriterTest() throws IOException { writer = new FileWriter(path); reader = new FileReader(path); } public static void main(String[] args) throws IOException { WriterTest test = new WriterTest(); // test.paramCharArray(); // char[] 파라미터 // test.paramInt..

Java 2020. 6. 14. 17:49

이 클래스와 같은 경로에 test.txt 파일 생성 가나다라마바사아자차카타파하abcdefghijklmnopqrstuvwxyz FileReaderTest 클래스 import java.io.FileReader; import java.io.IOException; import java.io.Reader; public class FileReaderTest { public static void main(String[] args) throws IOException { String path = FileReaderTest.class.getResource("test.txt").getPath(); Reader reader = new FileReader(path); char[] cbuf = new char[2]; // 한번에..

Java 2020. 6. 14. 13:42

클래와 같은 경로에 test.txt 파일 생성하여 다음의 내용 추가 ab FileReaderTest 클래스 import java.io.FileReader; import java.io.IOException; import java.io.Reader; public class FileReaderTest { public static void main(String[] args) throws IOException { String path = FileReaderTest.class.getResource("test.txt").getPath(); Reader reader = new FileReader(path); int readed1 = reader.read(); int readed2 = reader.read(); int ..

카테고리 없음 2020. 6. 14. 11:43

public class FileInputStreamHangul { public static void main(String[] args) throws IOException { String path = FileInputStreamHangul.class.getResource("test2.txt").getPath(); InputStream inputStream = new FileInputStream(path); int readByte = 0; byte[] readBytes = new byte[3]; while((readByte= inputStream.read(readBytes))!=-1){ System.out.println("읽은 바이트 수 : " + readByte); String string = new St..

카테고리 없음 2020. 6. 14. 10:41

public class FileInputStreamExam { public static void main(String[] args) throws IOException { String path = FileInputStreamExam.class.getResource("test.txt").getPath(); //[1] System.out.println("이 파일의 경로 : " + path); InputStream inputStream = new FileInputStream(path); int readByte; while ((readByte = inputStream.read())!=-1) { System.out.println("읽은 바이트 : "+readByte); System.out.println("읽은 문자..

Java 2020. 6. 14. 10:26

데이터베이스 테이블 칼럼 D NAME BRANCH PERCENTAGE PHONE EMAIL 1 Mohammad It 80 984803322 Mohammad@gmail.com 2 shyam It 75 984800000 shyam@gmail.com Student.java package net.school.lesson; public class Student { private int id; private String name; private String branch; private int percentage; private int phone; private String email; public Student() { } public Student(String name, String branch, int perce..

Mybatis 2020. 1. 20. 03:39

데이터베이스 칼럼 ID NAME BRANCH PERCENTAGE PHONE EMAIL 1 Mohammad It 80 984803322 Mohammad@gmail.com 2 shyam It 75 984800000 shyam@gmail.com Student.java package net.school.lesson; public class Student { private int id; private String name; private String branch; private int percentage; private int phone; private String email; public Student() { } public Student(String name, String branch, int percenta..

Mybatis 2020. 1. 20. 03:02

Read Operation [1]데이터베스 칼럼 추가 INSERT INTO STUDENT (NAME, BRANCH, PERCENTAGE, PHONE, EMAIL ) VALUES ('Mohammad','It',80,984803322,'Mohammad@gmail.com'); INSERT INTO STUDENT (NAME, BRANCH, PERCENTAGE, PHONE, EMAIL ) VALUES ('shyam','It',75,984800000,'shyam@gmail.com '); [2] toString 메서드 추가 Student.java //toString()메서드 추가 @Override public String toString() { return "Student [id=" + id + ", name=" +..

Mybatis 2020. 1. 20. 01:36