Question

java 填空题目

横线处为填空的地方

编制一个程序，将c:\test1.txt、c:\test2.txt两个文件的内容合并到一个c:\testall.txt文件中。
import java.io.*;
public class test4B{
public static void main(String args[]) throws IOException{
File f1 = new File("c:/test1.txt");
File f2 = new File("c:/test2.txt");
File f3 = new File("c:/testall.txt");
FileInputStream fis = new FileInputStream(f1);

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InputStream sis = new SequenceInputStream(fis, fis1);

InputStreamReader isr = new InputStreamReader(sis);

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int c;

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osw.write((char)c);
}
System.out.println("ok....");

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osw.close();

}
}

Answer 1

源码奉上，测试可行，望采纳
File f1 = new File("D:/1.txt");
File f2 = new File("D:/2.txt");
File f3 = new File("D:/a.txt");

FileInputStream fis = new FileInputStream(f1);
FileInputStream fis1 = new FileInputStream(f2);
FileOutputStream fos = new FileOutputStream(f3, true);

InputStream sis = new SequenceInputStream(fis, fis1);

InputStreamReader isr = new InputStreamReader(sis);
OutputStreamWriter osw = new OutputStreamWriter(fos);

int c;
while((c=isr.read())!=-1){
osw.write((char)c);
}
System.out.println("ok....");
isr.close();
osw.close();