j_flowlayout.java

一个十分好的java基础学习的课件

// ////////////////////////////////////////////////////////
// 
// J_FlowLayout.java
// 

// ////////////////////////////////////////////////////////

import java.awt.*;
import javax.swing.*;

public class J_FlowLayout
{
    public static void main( String args[] )
    { 
        JFrame app = new JFrame("FlowLayout");

        Container container = app.getContentPane( );
        container.setLayout( new FlowLayout(FlowLayout.CENTER) );

        JButton [] b= new JButton[4];
        for (int i= 0; i< 4; i++)
        {
            String s= "Button " + (i+1);
            b[i]= new JButton(s);
            container.add( b[i] );
        } // End of loop: for

        app.setSize( 300, 100 );
        app.setVisible( true );
        app.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE );
    } // End of method: main

} // End of class: J_FlowLayout