в 17:44, 31 мая 2010

2010-05-31T17:44:27Z

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2010-05-31T15:30:16Z

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== Formatter.ioException() ==



<source lang="java">
import java.io.FileOutputStream;
import java.util.Formatter;
public class Main {
public static void main(String[] argv) throws Exception {
Formatter fmtCon = new Formatter(System.out);
Formatter fmtFile;
fmtFile = new Formatter(new FileOutputStream("test.fmt"));
fmtCon.format("a negative number: %(.2f\n\n", -123.34);
fmtCon.format("%8s %8s\n", "Value", "Square");
for (int i = 1; i < 20; i++)
fmtCon.format("%8d %8d\n", i, i * i);
// write to the file.
fmtFile.format("This is a negative number: %(.2f\n\n", -123.34);
fmtFile.format("%8s %8s\n", "Value", "Square");
for (int i = 1; i < 20; i++)
fmtFile.format("%8d %8d\n", i, i * i);
fmtFile.close();
if (fmtFile.ioException() != null) {
System.out.println("File I/O Error Occurred");
}
}
}</source>



== locale-specific formatting. ==



<source lang="java">
import java.util.Calendar;
import java.util.Formatter;
import java.util.Locale;
public class Main {
public static void main(String args[]) {
Formatter fmt = new Formatter();
Calendar cal = Calendar.getInstance();
fmt = new Formatter();
fmt.format("Default locale: %tc\n", cal);
fmt.format(Locale.GERMAN, "For Locale.GERMAN: %tc\n", cal);
fmt.format(Locale.ITALY, "For Locale.ITALY: %tc\n", cal);
fmt.format(Locale.FRANCE, "For Locale.FRANCE: %tc\n", cal);
System.out.println(fmt);
}
}</source>



== new Formatter(new OutputStream("test.fmt")) ==



<source lang="java">
import java.io.FileOutputStream;
import java.util.Formatter;
public class Main {
public static void main(String[] argv) throws Exception {
Formatter fmtCon = new Formatter(System.out);
Formatter fmtFile;
fmtFile = new Formatter(new FileOutputStream("test.fmt"));
fmtCon.format("a negative number: %(.2f\n\n", -123.34);
fmtCon.format("%8s %8s\n", "Value", "Square");
for (int i = 1; i < 20; i++)
fmtCon.format("%8d %8d\n", i, i * i);
// write to the file.
fmtFile.format("This is a negative number: %(.2f\n\n", -123.34);
fmtFile.format("%8s %8s\n", "Value", "Square");
for (int i = 1; i < 20; i++)
fmtFile.format("%8d %8d\n", i, i * i);
fmtFile.close();
if (fmtFile.ioException() != null) {
System.out.println("File I/O Error Occurred");
}
}
}</source>



== Write formatted output directly to the console and to a file. ==



<source lang="java">
import java.io.FileOutputStream;
import java.util.Formatter;
public class Main {
public static void main(String[] argv) throws Exception {
Formatter fmtCon = new Formatter(System.out);
Formatter fmtFile;
fmtFile = new Formatter(new FileOutputStream("test.fmt"));
fmtCon.format("a negative number: %(.2f\n\n", -123.34);
fmtCon.format("%8s %8s\n", "Value", "Square");
for (int i = 1; i < 20; i++)
fmtCon.format("%8d %8d\n", i, i * i);
// write to the file.
fmtFile.format("This is a negative number: %(.2f\n\n", -123.34);
fmtFile.format("%8s %8s\n", "Value", "Square");
for (int i = 1; i < 20; i++)
fmtFile.format("%8d %8d\n", i, i * i);
fmtFile.close();
if (fmtFile.ioException() != null) {
System.out.println("File I/O Error Occurred");
}
}
}</source>

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в 17:44, 31 мая 2010

Admin: 1 версия