如何计算文件txt中的行数android [英] How to count lines in file txt android
本文介绍了如何计算文件txt中的行数android的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
无法理解如何计算行数.这是我的代码.
Can't understand how to count lines. Here is my code.
void load() throws IOException
{
File sdcard = Environment.getExternalStorageDirectory();
File file = new File(sdcard,"agenda.file");
StringBuilder text = new StringBuilder();
try {
BufferedReader br = new BufferedReader(new FileReader(file));
String line;
while ((line = br.readLine()) != null) {
text.append(line);
text.append('
');
TextView te=(TextView)findViewById(R.id.textView1);
}
}
catch (IOException e) {
//You'll need to add proper error handling here
}
Button monpopb = (Button) findViewById(R.id.button13);
monpopb.setText(text);
}那么,如何在TextView中进行计数和设置文本呢?谢谢!
} So, how to count and settext in TextView? Thank you!
推荐答案
这是您要找的吗?
void load() throws IOException
{
File sdcard = Environment.getExternalStorageDirectory();
File file = new File(sdcard,"agenda.file");
StringBuilder text = new StringBuilder();
try {
BufferedReader br = new BufferedReader(new FileReader(file));
String line;
TextView te=(TextView)findViewById(R.id.textView1);
int lineCount = 0;
while ((line = br.readLine()) != null) {
text.append(line);
text.append('
');
lineCount++;
}
te.setText(String.valueOf(lineCount));
}
catch (IOException e) {
//You'll need to add proper error handling here
}
Button monpopb = (Button) findViewById(R.id.button13);
monpopb.setText(text);
}
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