///////////////////////////////////////////////
//
//  FontChange.java
//     by Totora (1999/12/19)
//
//////////////////////////////////////////////

import java.awt.*;
import java.awt.event.*;

public class FontChange extends Frame implements ActionListener {
    Label  lbl1, lbl2;
    Button btn1, btn2, btn3, btn4;
    Button btnP, btnB, btnI, btnBI;
    String fname;
    int    style;  //フォントのスタイル指定(Font.PLAINなど）は整数値
		  //として処理されるので、int型の変数を使用

    FontChange() {
	setTitle("ChangeFont"); //ウィンドウのタイトル
	addWindowListener(new CloseWindow());
	setLayout(new GridLayout(0,2)); //部品類の配置を縦２列にする
	lbl1 = new Label(" My name is ???");
	lbl2 = new Label("  Style");
	btn1 = new Button("Dialog");
	btn2 = new Button("TimesRoman");
	btn3 = new Button("Helvetica");
	btn4 = new Button("DialogInput");
	btnP = new Button("PLAIN");
	btnB = new Button("BOLD");
	btnI = new Button("ITALIC");
	btnBI = new Button("BOLD&ITALIC");
	btn1.addActionListener(this);
	btn2.addActionListener(this);
	btn3.addActionListener(this);
	btn4.addActionListener(this);
	btnP.addActionListener(this);
	btnB.addActionListener(this);
	btnI.addActionListener(this);
	btnBI.addActionListener(this);

	add(lbl1);
	add(lbl2);
	add(btn1);
	add(btn2);
	add(btn3);
	add(btn4);
	add(btnP);
	add(btnB);
	add(btnI);
	add(btnBI);

	fname = ""; //フォントの初期値をDefaultに
	style = 0; //フォントスタイルの初期値をPLAINに
	lbl1.setFont(new Font(fname,style,14));
		//具体的なフォント名、スタイル名を使う代わりに
	       //変数で処理しています・・・後の手間を少し省ける
    }

    public void actionPerformed(ActionEvent e) {
	if(e.getSource()==btn1){
	    fname = "Dialog";
	    lbl1.setText(" My name is Dialog.");
	    lbl1.setFont(new Font(fname,style,14));
	}else if(e.getSource()==btn2){
	    fname = "TimesRoman";
	    lbl1.setText(" My name is TimesRoman.");
	    lbl1.setFont(new Font(fname,style,14));
	}else if(e.getSource()==btn3){
	    fname = "Helvetica";
	    lbl1.setText(" My name is Helvetica.");
	    lbl1.setFont(new Font(fname,style,14));
	}else if(e.getSource()==btn4){
	    fname = "DialogInput";
	    lbl1.setText(" My name is DialogInput.");
	    lbl1.setFont(new Font(fname,style,14));
	}else if(e.getSource()==btnP){
	    style = Font.PLAIN;
	    lbl1.setFont(new Font(fname,style,14));
	    lbl2.setText("  style = PLAIN" + "(" + style + ")" );
	}else if(e.getSource()==btnB){
	    style = Font.BOLD;
	    lbl1.setFont(new Font(fname,style,14));
	    lbl2.setText("  style = BOLD" + "(" + style + ")" );
	}else if(e.getSource()==btnI){
	    style = Font.ITALIC;
	    lbl1.setFont(new Font(fname,style,14));
	    lbl2.setText("  style = ITALIC" + "(" + style + ")" );
	}else if(e.getSource()==btnBI){
	    style = Font.BOLD + Font.ITALIC;
	    lbl1.setFont(new Font(fname,style,14));
	    lbl2.setText("  style = BOLD&ITALIC" + "(" + style + ")" );
	}
    }

    public static void main(String args[]){
	FontChange fc = new FontChange();
	fc.setSize(420,150);
	fc.show();
    }
}

////////////////プログラムは以上です。//////////////////