\u6628\u65e5\u304b\u3089swing\u3002\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u306e\u5834\u5408\u3001JPanel\u3092`\u666e\u901a\u306b\u5225\u30af\u30e9\u30b9\u3068\u3057\u3066\u66f8\u304f\u304b\u3001\u30a4\u30f3\u30ca\u30fc\u30af\u30e9\u30b9\u3067\u66f8\u304f\u304b\u3067\u5909\u6570\u306e\u30b9\u30b3\u30fc\u30d7\u304c\u5909\u308f\u308b\u306e\u306f\u7406\u89e3\u3057\u3066\u308b\u3093\u3067\u3059\u3051\u3069\u3001<\/p>\n
\u306a\u305c\u3001showStatus()\u304c\u30a4\u30f3\u30ca\u30fc\u3060\u3068\u6d3b\u304d\u3066\u3001\u5206\u3051\u308b\u3068JApplet\u5074\u306b\u66f8\u3044\u3066\u3082\u3001\u3082\u3061\u308d\u3093JPanel\u5074\u306b\u66f8\u3044\u3066\u3082\u52d5\u4f5c\u3057\u306a\u3044\u306e\u304b\u304c\u308f\u304b\u308a\u307e\u305b\u3093\u3002<\/p>\n
<\/p>\n
import java.awt.*;<\/p>\n
import javax.swing.*;<\/p>\n
public class Ch13Rewrite4 extends JApplet {
\npublic void init() {
\ngetContentPane().add(new MyPane());
\n}<\/p>\n
class MyPane extends JPanel {
\npublic void paintComponent(Graphics g) {
\nDimension d = getSize();
\nint xc = d.width \/ 2;
\nint yc = d.height \/ 2;
\nint radius = (int) (((d.width < d.height) ? d.width : d.height) * 0.35);
\nint rr = (int) (Math.random() * 255.9);
\nint gg = (int) (Math.random() * 255.9);
\nint bb = (int) (Math.random() * 255.9);
\nColor c = new Color(rr, gg, bb);
\ng.setColor(c);<\/p>\n
g.fillOval(xc – radius, yc – radius, radius * 2, radius * 2);<\/p>\n
g.setColor(Color.white);
\nFontMetrics fm=g.getFontMetrics();
\nString s=rr+” : “+gg+” : “+bb;
\ng.drawString(s, xc-(fm.stringWidth(s)\/2), yc);
\nshowStatus(d.width + ” : ” + d.height + ” : ” + radius);<\/p>\n
g.drawLine(0, yc, d.width, yc);
\ng.drawLine(xc, 0, xc, d.height);
\n}
\n}
\n}<\/p>\n
\u3068\u308a\u3042\u3048\u305a\u5099\u5fd8\u3002\u8ffd\u6c42\u306f\u304a\u3044\u304a\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6628\u65e5\u304b\u3089swing\u3002\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u306e\u5834\u5408\u3001JPanel\u3092`\u666e\u901a\u306b\u5225\u30af\u30e9\u30b9\u3068\u3057\u3066\u66f8\u304f\u304b\u3001\u30a4\u30f3\u30ca\u30fc\u30af\u30e9\u30b9\u3067\u66f8\u304f\u304b\u3067\u5909\u6570\u306e\u30b9\u30b3\u30fc\u30d7\u304c\u5909\u308f\u308b\u306e\u306f\u7406\u89e3\u3057\u3066\u308b\u3093\u3067\u3059\u3051\u3069\u3001 \u306a\u305c\u3001showStatus()\u304c\u30a4\u30f3\u30ca\u30fc\u3060\u3068\u6d3b\u304d\u3066\u3001\u5206\u3051\u308b\u3068J […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[41],"class_list":["post-447","post","type-post","status-publish","format-standard","hentry","category-1","tag-java"],"_links":{"self":[{"href":"https:\/\/beingtested.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/447","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/beingtested.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/beingtested.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/beingtested.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/beingtested.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=447"}],"version-history":[{"count":5,"href":"https:\/\/beingtested.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/447\/revisions"}],"predecessor-version":[{"id":451,"href":"https:\/\/beingtested.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/447\/revisions\/451"}],"wp:attachment":[{"href":"https:\/\/beingtested.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=447"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/beingtested.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=447"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/beingtested.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=447"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}