java读取txt文件方法实例教程。
private String readtxt() throws IOException{
BufferedReader br=new BufferedReader(new FileReader(“d:/sql.txt”));
String str=”";
String r=br.readLine();
while(r!=null){
str+=r;
r=br.readLine();
}
return str;
}
Java代码
/*
* 读取char
*/
private String readtxt() throws IOException{
BufferedReader br=new BufferedReader(new FileReader(“d:/sql.txt”));
String str=”";
String r=br.readLine();
while(r!=null){
str+=r;
r=br.readLine();
}
return str;
}
Java代码
/*
* 读取char
*/
private String readtxt2() throws IOException{
String str=”";
FileReader fr=new FileReader(“d:/sql.txt”);
char[] chars=new char[1024];
int b=0;
while((b=fr.read(chars))!=-1){
str+=String.valueOf(chars);
}
return str;
}
Java代码
/*
* 读取char
*/
private String readtxt2() throws IOException{
String str=”";
FileReader fr=new FileReader(“d:/sql.txt”);
char[] chars=new char[1024];
int b=0;
while((b=fr.read(chars))!=-1){
str+=String.valueOf(chars);
}
return str;
}
Java代码
/*
* 读取bytes
*/
private Byte[] readtxt3() throws IOException{
InputStream input=new FileInputStream(“d:/sql.txt”);
byte[] b=new byte[1024];
ArrayList<Byte> lsbytes=new ArrayList<Byte>();
int n=0;
while((n=input.read(b))!=-1){
for(int i=0;i<n;i++){
lsbytes.add(b[i]);
}
}
return (Byte[])(lsbytes.toArray());
}
Java代码
/*
* 读取bytes
*/
private Byte[] readtxt3() throws IOException{
InputStream input=new FileInputStream(“d:/sql.txt”);
byte[] b=new byte[1024];
ArrayList<Byte> lsbytes=new ArrayList<Byte>();
int n=0;
while((n=input.read(b))!=-1){
for(int i=0;i<n;i++){
lsbytes.add(b[i]);
}
}
return (Byte[])(lsbytes.toArray());
}
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