File open read to StringBuilder close Java example
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BufferedReader , FileReader, StringBuilder , readLine, close Java example
Android example
Java example
Android example
String MYFILE = "my_file";
FileInputStream fis = openFileInput(MYFILE);
int c; String sText = "";
while((c=fis.read())!=-1)
{
sText += (char)c; // convert int to char
}
fis.close();
Java example
try {
BufferedReader in = new BufferedReader(new FileReader("myfile.txt"));
StringBuilder strBuilder = new StringBuilder();
String str;
while ((str = in.readLine()) != null) {
strBuilder.append(str);
}
in.close();
} catch (IOException e) {
e.toString();
}
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Další témata ....(Topics)
Very dark picture, in photo editor black remains black
Very bright picture, in photo editor white will white
Dark picture but the chart is not in black color area - dark shades can be lighten in graphics editor
Very bright picture, in photo editor white will white
Dark picture but the chart is not in black color area - dark shades can be lighten in graphics editor
Try this solution:
String DATA = "Html text....bla bla bla. Hellou world! čšřžěéá";
String HEADERHTML =
"<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">"
+"<html> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8">"
+"</head> <body>";
String FOOTERHTML = "</body></html>";
WebView mWebView.loadData(HEADERHTML+DATA+FOOTERHTML,"text/html; charset=UTF-8",null);
xml example source code with image.
<TableLayout android:layout_width="match_parent" android:id="@+id/idTableInRadioGroup" android:layout_height="wrap_content">
<TableRow android:id="@+id/tableRow1" android:layout_width="wrap_content" android:layout_height="wrap_content">
<RadioGroup android:id="@+id/idRadio_group_1_column"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:orientation="vertical">
<RadioButton android:id="@+id/idRadio_1"
android:text="@string/textLabel_1"/>
<RadioButton android:id="@+id/idRadio_2"
android:text="@string/textLabel_2"/>
<RadioButton android:id="@+id/idRadio_3"
android:text="@string/textLabel_3"/>
</RadioGroup>
<RadioGroup android:id="@+id/idRadio_group_2_column"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:orientation="vertical">
<RadioButton android:id="@+id/idRadio_4"
android:text="@string/textLabel_4"/>
<RadioButton android:id="@+id/idRadio_5"
android:text="@string/textLabel_5"/>
<RadioButton android:id="@+id/idRadio_6"
android:text="@string/textLabel_6"/>
</RadioGroup>
</TableRow>
</TableLayout>
public class MainActivity extends Activity {
// //www.apache.org/licenses/LICENSE-2.0
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(new SampleView(this));
}
private static class SampleView extends View {
private Rect mRect;
private GradientDrawable mDrawable;
public SampleView(Context context) {
super(context);
setFocusable(true);
mRect = new Rect(0, 0, 220, 120);
/* GradientDrawable.Orientation BL_TR draw the gradient from the bottom-left to the top-right
BOTTOM_TOP draw the gradient from the bottom to the top
BR_TL draw the gradient from the bottom-right to the top-left
LEFT_RIGHT draw the gradient from the left to the right
RIGHT_LEFT draw the gradient from the right to the left
TL_BR draw the gradient from the top-left to the bottom-right
TOP_BOTTOM draw the gradient from the top to the bottom
TR_BL draw the gradient from the top-right to the bottom-left
*/
mDrawable = new GradientDrawable(GradientDrawable.Orientation.LEFT_RIGHT,
new int[] { 0xFFFF0000, 0xFF00FF00,
0xFF0000FF });
mDrawable.setShape(GradientDrawable.RECTANGLE);
mDrawable.setGradientRadius((float)(Math.sqrt(2) * 60));
}
static void setCornerRadius(GradientDrawable drawable, float r0,
float r1, float r2, float r3) {
/* setCornerRadii
Specify radii for each of the 4 corners. For each corner,
the array contains 2 values, [X_radius, Y_radius].
The corners are ordered top-left, top-right, bottom-right,
bottom-left
*/
drawable.setCornerRadii(new float[] { r0, r0, r1, r1,
r2, r2, r3, r3 });
}
@Override protected void onDraw(Canvas canvas) {
mDrawable.setBounds(mRect);
float r = 35;
canvas.save();
canvas.translate(10, 10);
mDrawable.setGradientType(GradientDrawable.LINEAR_GRADIENT);
setCornerRadius(mDrawable, r, r, 0, 0);
mDrawable.draw(canvas);
canvas.restore();
canvas.translate(0, mRect.height() + 10);
canvas.save();
canvas.translate(10, 10);
mDrawable.setGradientType(GradientDrawable.RADIAL_GRADIENT);
setCornerRadius(mDrawable, 0, 0, r, r);
mDrawable.draw(canvas);
canvas.restore();
canvas.translate(0, mRect.height() + 10);
canvas.save();
canvas.translate(10, 10);
mDrawable.setGradientType(GradientDrawable.SWEEP_GRADIENT);
setCornerRadius(mDrawable, 0, r, r, 0);
mDrawable.draw(canvas);
canvas.restore();
}
}
}
// on bottom of onCreate add listener
mInterstitialAd .setAdListener(new AdListener(){
public void onAdLoaded(){
interstitial.show();
}
});
} // end onCreate
public void displayInterstitial (){
if (mInterstitialAd.isLoaded()) {
mInterstitialAd.show();
}
}
Editace: 2011-10-03 12:34:27
Počet článků v kategorii: 396
Url:file-open-read-to-stringbuilder-close-java-example
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