java字串合併問題

2009-04-05 4:28 am

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;

public class read {
public static void main(String[] args) throws IOException {
String temp = new String();
File myFile = new File("123.txt");
FileReader fr = new FileReader(myFile);
BufferedReader br = new BufferedReader(fr);
String Line = br.readLine();

System.out.println(Line);

while((Line = br.readLine())!= null){

System.out.println(Line);
}
}

這個程式是從123.txt中讀檔案並分行印出來

我想把123.TXT中
第二行接在第一行後面第三行接在第二行後面以此類堆
最後把這這些全部存成"一個"字串
最後再印出來

請問有大大能幫我改嗎?

回答 (1)

bean_bottom_2

2009-04-05 1:41 pm

✔ 最佳答案

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.lang.String;

public class a {
public static void main(String[] args) throws IOException {
String temp = new String();
File myFile = new File("123.txt");
FileReader fr = new FileReader(myFile);
BufferedReader br = new BufferedReader(fr);
String Line = new String();

while((Line = br.readLine())!= null){
temp = temp + Line;
System.out.println(Line);
}
System.out.println(temp);
}
}

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