Java基础 awt Frame 设置窗体的大小 位置 可见性

•     JDK ：OpenJDK-11
•      OS ：CentOS 7.6.1810
•      IDE ：Eclipse 2019‑03
• typesetting ：Markdown

 

code

package per.jizuiku.gui;

import java.awt.Dimension;
import java.awt.Frame;
import java.awt.Point;

/**
 * @author 给最苦
 * @date 2019/06/30
 * @blog www.cnblogs.com/jizuiku
 */
public class Demo {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // 创建窗体对象 相当于 创建了一个线程
        Frame f = new Frame();

        // 设置窗体的标题
        // Frame(String title) 可以通过构造函数来设置
        f.setTitle("第一个窗口程序");

        // 设置窗体的大小,单位是像素
        int width = 400;
        int height = 500;
        Dimension d = new Dimension(width, height);
        f.setSize(d);

        // 设置窗体出现的位置
        int x = 300;
        int y = 200;
        Point p = new Point(x, y);
        f.setLocation(p);

        // f.setBounds(x, y, width, height);
        // 可以通过这个函数 一次性设置窗口的位置和大小s

        // 让窗体显示出来
        f.setVisible(true);

    }

}

 

result

 

sourceCode

/**
    * {@inheritDoc}
    * <p>
    * The {@code d.width} and {@code d.height} values
    * are automatically enlarged if either is less than
    * the minimum size as specified by previous call to
    * {@code setMinimumSize}.
    * <p>
    * The method changes the geometry-related data. Therefore,
    * the native windowing system may ignore such requests, or it may modify
    * the requested data, so that the {@code Window} object is placed and sized
    * in a way that corresponds closely to the desktop settings.
    *
    * @see #getSize
    * @see #setBounds
    * @see #setMinimumSize
    * @since 1.6
    */
public void setSize(Dimension d) {
    super.setSize(d);
}

/**
    * {@inheritDoc}
    * <p>
    * The method changes the geometry-related data. Therefore,
    * the native windowing system may ignore such requests, or it may modify
    * the requested data, so that the {@code Window} object is placed and sized
    * in a way that corresponds closely to the desktop settings.
    */
@Override
public void setLocation(Point p) {
    super.setLocation(p);
}

 

resource

• [ JDK ] openjdk.java.net
• [ doc - 参考 ] docs.oracle.com/en/java/javase/11
• [ 规范 - 推荐 ] yq.aliyun.com/articles/69327
• [ 规范 - 推荐 ] google.github.io/styleguide
• [ 源码 ] hg.openjdk.java.net
• [ OS ] www.centos.org
• [ IDE ] www.eclipse.org/downloads/packages
• [ 平台 ] www.cnblogs.com

 

---

感谢帮助过 给最苦 的人们。

Java、Groovy和Scala等基于JVM的语言，优秀，值得学习。

规范的命名和代码格式等，有助于沟通和理解。

JVM的配置、监控与优化，比较实用，值得学习。