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package com.heima.demo1;
import java.awt.Flowlayout;import javax.swing.Jframe;import javax.swing. swingutilities;public class Demo4_FlowLayout {public static void main(string[] args){SwingUtilities.invokelater(l) -> createAndShowGUI());}public static void createAndShowGul(){//1.创建容器窗体Jframe jf - new Jframe(“Flowlayout”);jf.setBounds(100，200，300，400);//2.指定当前容器使用的布局jf.setlayout(new Flowlayoutb);|jf.setDefaultcloseOperation(Jframe.EXT_oN_CLOSE); jf.setVisible(true);}