例子
以下示例显示java.io.FilterReader.read()方法的用法。
package com.jc2182;
import java.io.FilterReader;
import java.io.Reader;
import java.io.StringReader;
public class FilterReaderDemo {
public static void main(String[] args) throws Exception {
FilterReader fr = null;
Reader r = null;
int i = 0;
char c;
try {
// create new reader
r = new StringReader("ABCDEF");
// create new filter reader
fr = new FilterReader(r) {
};
// read till the end of the stream
while((i = fr.read())!=-1) {
// converts integer to character
c = (char)i;
// print
System.out.println("Character read: "+c);
}
} catch(Exception e) {
// if any I/O error occurs
e.printStackTrace();
} finally {
// releases system resources associated with this stream
if(r!=null)
r.close();
if(fr!=null)
fr.close();
}
}
}
让我们编译并运行以上程序,这将产生以下结果-
Character read: A
Character read: B
Character read: C
Character read: D
Character read: E
Character read: F