按自定义字体逐字符绘制字符串值

/**
 * 时代Java公众号 提 供 
**/

import java.awt.*;

import java.io.*;

import java.util.*;


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) {/*来自 时代Java公众号 - nowjava.com*/

            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);

        setVisible(true);

    }


    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);

    }

}