Java io 文件读取 合并

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.util.Scanner;

/**
* Scanner的小例子，从文件中读内容
* */
public class ABAB{
public static void main(String[] args){

int count1 = 0;
int count2 = 0;

File file = new File("F:"+File.separator+"Work"+File.separator+"AA-Binhai"+File.separator+ "AA.txt");
Scanner sca = null;

try{
sca = new Scanner(file);
}catch(FileNotFoundException e){
e.printStackTrace();
}

File file2 = new File("F:"+File.separator+"Work"+File.separator+"AA-Binhai"+File.separator+ "BB.txt");
Scanner sca2 = null;
try{
sca2 = new Scanner(file2);
}catch(FileNotFoundException e){
e.printStackTrace();
}

while(sca.hasNextLine()){//文件1和文件2行数相等 因此一个while条件即可
String str1 = sca.nextLine();
String str2 = sca2.nextLine();
count1 = count1+1;

System.out.println(str1);
System.out.println(str2);
}
System.out.println(count1);

/*
FileReader fr = null;
try {
fr = new FileReader(file2);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
BufferedReader buff = new BufferedReader(fr);
buff.readLine()*/

}
}