java范例的字符转换的办法
Java语言作为静态面向工具编程语言的代表,极好地实现了面向工具理论,答应顺序员以优雅的思维体式格局进行复杂的.编程。以下是小编为大师搜索收拾整顿的java范例的字符转换的办法,但愿能给大师带来帮忙!更多出色内容请及时存眷我们应届结业生测验网!
操纵字节省FileOutputStream写文文本文件
import java.io.OutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
OutputStream obj = FileOutputStream"文件称号";
String array ="字符串";
String [] aa = array.getBytes;
obj.writeaa,0,aa.length;
obj.close;
操纵字符流BufferedReader读文本文件
import java.io.FileReader;
import java.io.BufferedReader;
import java.io.IOException;
FileReader fr = new FileReader"文件称号";
BufferedReader br = new BufferedReaderfr;
br.readLine;
br.close;
fr.close;
操纵BufferedWriter写文本文件
import java.io.FileWriter;
import java.io.BufferedWriter;
import java.io.IOException;
FileWriter fw = new FileWriter"文件称号";
BufferedWriter bw = new BufferedWriterfw;
bw.writer"字符串";
bw.flush;
fw.close;
操纵字节省DateInputStream读二进制文件
import java.io.FileInputStream;
import java.io.DateInputStream;
FileInputStream fis = new FileInputStream"文件称号";
DateInputStream dis = new DateInputStreamIfis;
dis.readInt;
dis.readByte;
dis.close;
操纵字节省DateOutputStream写二进制文件
import java.io.FileOutputStream;
import java.io.DateOutputStream;
FileOutputStream fop = new FileOutputStream"文件称号";
DateOutputStream dop = new DateOutputStreamfop;
dop.write1;
dop.close;
JDBC 应用顺序的布局
import java.sql.SQLException;
import java.sql.Conncetion;
import java.sql.DriverManager;
import java.sql.Statement;
import java.sql.ResultSet;
try
Class.forName"sun.jdbc.odbc.JdbcOdbcDriver";
catchClassNotFoundException e
System.out.printlne;
try
String aa = "jdbc:odbc:test";
Connection con = DriverManager.getConnectionaa;
Statement s = con.createStatement;
ResultSet rs = s.executeQuery"查询语句";
whilers.next
rs.close
s.close;
con.close;
catchSQLException ee
System.out.printee;