Stream Converter Unicode
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import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Insets;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.Reader;
import java.io.Writer;
public class StreamConverter {
static void writeOutput(String str) {
try {
FileOutputStream fos = new FileOutputStream("test.txt");
Writer out = new OutputStreamWriter(fos, "UTF8");
out.write(str);
out.close();
} catch (IOException e) {
e.printStackTrace();
}
}
static String readInput() {
StringBuffer buffer = new StringBuffer();
try {
FileInputStream fis = new FileInputStream("test.txt");
InputStreamReader isr = new InputStreamReader(fis, "UTF8");
Reader in = new BufferedReader(isr);
int ch;
while ((ch = in.read()) > -1) {
buffer.append((char) ch);
}
in.close();
return buffer.toString();
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
public static void main(String[] args) {
String jaString = new String("\u65e5\u672c\u8a9e\u6587\u5b57\u5217");
writeOutput(jaString);
String inputString = readInput();
String displayString = jaString + " " + inputString;
new ShowString(displayString, "Conversion Demo");
}
}
class ShowString extends Frame {
FontMetrics fontM;
String outString;
ShowString(String target, String title) {
setTitle(title);
outString = target;
Font font = new Font("Monospaced", Font.PLAIN, 36);
fontM = getFontMetrics(font);
setFont(font);
int size = 0;
for (int i = 0; i < outString.length(); i++) {
size += fontM.charWidth(outString.charAt(i));
}
size += 24;
setSize(size, fontM.getHeight() + 60);
setLocation(getSize().width / 2, getSize().height / 2);
show();
}
public void paint(Graphics g) {
Insets insets = getInsets();
int x = insets.left;
int y = insets.top;
g.drawString(outString, x + 6, y + fontM.getAscent() + 14);
}
}
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