java讀取txt目標檔案中的資料列印到控制檯
阿新 • • 發佈:2019-02-12
package demo2;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
public class Test {
public static void main(String[] args) {
File file = new File("D:\\test.txt");//獲得檔案
try {
FileReader fr = new FileReader(file);//讀取檔案
BufferedReader br = new BufferedReader(fr);//字元輸入流化
try {
String s, s2 = new String();
while ((s = br.readLine()) != null) {//迴圈的讀取一行一行讀取檔案,知道最後一行為空停止
s2 += s + "\n ";
}
br.close();//關閉輸入流
System.out.println(s2);//列印輸出TXT檔案中的資料
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
public class Test {
public static void main(String[] args) {
File file = new File("D:\\test.txt");//獲得檔案
try {
FileReader fr = new FileReader(file);//讀取檔案
BufferedReader br = new BufferedReader(fr);//字元輸入流化
try {
String s, s2 = new String();
while ((s = br.readLine()) != null) {//迴圈的讀取一行一行讀取檔案,知道最後一行為空停止
s2 += s + "\n ";
}
br.close();//關閉輸入流
System.out.println(s2);//列印輸出TXT檔案中的資料
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}