关于Java的字符转换
Java类型的字符转换方法是什么?不用急,下面一起和小编来学习学习吧!
利用字节流FileOutputStream写文文本文件
import utStream;
import OutputStream;
import ception;
OutputStream obj = FileOutputStream("文件名称");
String array ="字符串";
String [] aa = ytes();
e(aa,0,th());
e();
利用字符流BufferedReader读文本文件
import Reader;
import eredReader;
import ception;
FileReader fr = new FileReader("文件名称");
BufferedReader br = new BufferedReader(fr);
Line();
e();
e();
利用BufferedWriter写文本文件
import Writer;
import eredWriter;
import ception;
FileWriter fw = new FileWriter("文件名称");
BufferedWriter bw = new BufferedWriter(fw);
er("字符串");
h();
e();
利用字节流DateInputStream读二进制文件
import InputStream;
import InputStream;
FileInputStream fis = new FileInputStream("文件名称");
DateInputStream dis = new DateInputStreamI(fis);
Int();
Byte();
e();
利用字节流DateOutputStream写二进制文件
import OutputStream;
import OutputStream;
FileOutputStream fop = new FileOutputStream("文件名称");
DateOutputStream dop = new DateOutputStream(fop);
e(1);
e();
JDBC 应用程序的结构
import xception;
import cetion;
import erManager;
import ement;
import ltSet;
try{
ame("OdbcDriver");
}catch(ClassNotFoundException e){
tln(e);
}
try{
String aa = "jdbc:odbc:test";
Connection con = onnection(aa);
Statement s = teStatement();
ResultSet rs = uteQuery("查询语句");
while(())
e()
e();
e();
} catch(SQLException ee){
t(ee);
}