JScrollPane包裹JTextArea2405240055

package jTextarea;

import java.awt.Color; import java.awt.Font; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.awt.font.TextAttribute; import java.lang.reflect.InvocationTargetException; import java.util.HashMap;

import javax.swing.*;

public class JScrollPane包裹JTextArea2405240055 extends JFrame{

public static void main(String[] args) { try { Class.forName(Thread.currentThread().getStackTrace()[1].getClassName()).getDeclaredConstructor().newInstance(); } catch (InstantiationException e) { e.printStackTrace(); } catch (IllegalAccessException e) { e.printStackTrace(); } catch (IllegalArgumentException e) { e.printStackTrace(); } catch (InvocationTargetException e) { e.printStackTrace(); } catch (NoSuchMethodException e) { e.printStackTrace(); } catch (SecurityException e) { e.printStackTrace(); } catch (ClassNotFoundException e) { e.printStackTrace(); }

}

{ this.addWindowListener(new WindowAdapter() { @Override public void windowClosing(WindowEvent ev) { System.exit(0); } }); this.setTitle(getClass().getName()); this.setBounds(100, 100, 800, 600); }

JScrollPane jScrollPane010;

JTextArea jTextArea010;

public JScrollPane包裹JTextArea2405240055() { super();

jTextArea010 = new JTextArea(""" JScrollPane添加JTextArea可以在构造方法,也可以用 setViewportView( 方法 构造方法源码: public JScrollPane(Component view, int vsbPolicy, int hsbPolicy) { setLayout(new ScrollPaneLayout.UIResource()); setVerticalScrollBarPolicy(vsbPolicy); setHorizontalScrollBarPolicy(hsbPolicy); setViewport(createViewport()); setVerticalScrollBar(createVerticalScrollBar()); setHorizontalScrollBar(createHorizontalScrollBar()); if (view != null) { setViewportView(view); // 就是调用 setViewportView( 方法 } setUIProperty("opaque",true); updateUI();

if (!this.getComponentOrientation().isLeftToRight()) { viewport.setViewPosition(new Point(Integer.MAX_VALUE, 0)); } } """); HashMap<TextAttribute, Object> fontCfg = new HashMap<>(); fontCfg.put(TextAttribute.FAMILY, "宋体"); fontCfg.put(TextAttribute.BACKGROUND, new Color(0x00f67799)); fontCfg.put(TextAttribute.FOREGROUND, Color.white); fontCfg.put(TextAttribute.SIZE, 33); //字体大小尺寸 // fontCfg.put(TextAttribute.WEIGHT, TextAttribute.WEIGHT_ULTRABOLD); //最粗体 // fontCfg.put(TextAttribute.POSTURE, 0.2f); //斜体 Font font = Font.getFont(fontCfg); jTextArea010.setFont(font); jTextArea010.setBackground(Color.black);

// jScrollPane010 = new JScrollPane(jScrollPane010, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS); // jScrollPane010 = new JScrollPane(jScrollPane010, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED); jScrollPane010 = new JScrollPane(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS); // jScrollPane010 = new JScrollPane(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);

jScrollPane010.setViewportView(jTextArea010);

add(jScrollPane010);

this.setVisible(true); }

}

package jTextarea;

import java.awt.Color;
import java.awt.Font;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.font.TextAttribute;
import java.lang.reflect.InvocationTargetException;
import java.util.HashMap;

import javax.swing.*;

public class JScrollPane包裹JTextArea2405240055 extends JFrame{

	/**
	 * 
	 */
	private static final long serialVersionUID = -2238483862288329351L;
	
	
	public static void main(String[] args) {
		try {
			Class.forName(Thread.currentThread().getStackTrace()[1].getClassName()).getDeclaredConstructor().newInstance();
		} catch (InstantiationException e) {
			e.printStackTrace();
		} catch (IllegalAccessException e) {
			e.printStackTrace();
		} catch (IllegalArgumentException e) {
			e.printStackTrace();
		} catch (InvocationTargetException e) {
			e.printStackTrace();
		} catch (NoSuchMethodException e) {
			e.printStackTrace();
		} catch (SecurityException e) {
			e.printStackTrace();
		} catch (ClassNotFoundException e) {
			e.printStackTrace();
		}
		
	}
	
	
	{
		this.addWindowListener(new WindowAdapter() {
			@Override public void windowClosing(WindowEvent ev) {
				System.exit(0);
			}
		});
		this.setTitle(getClass().getName());
		this.setBounds(100, 100, 800, 600);
	}
	
	JScrollPane jScrollPane010;
	
	JTextArea jTextArea010;
	
	public JScrollPane包裹JTextArea2405240055() {
		super();
		
		jTextArea010 = new JTextArea("""
				JScrollPane添加JTextArea可以在构造方法,也可以用 setViewportView( 方法
				构造方法源码:
				public JScrollPane(Component view, int vsbPolicy, int hsbPolicy)
			    {
			        setLayout(new ScrollPaneLayout.UIResource());
			        setVerticalScrollBarPolicy(vsbPolicy);
			        setHorizontalScrollBarPolicy(hsbPolicy);
			        setViewport(createViewport());
			        setVerticalScrollBar(createVerticalScrollBar());
			        setHorizontalScrollBar(createHorizontalScrollBar());
			        if (view != null) {
			            setViewportView(view);  // 就是调用 setViewportView( 方法
			        }
			        setUIProperty("opaque",true);
			        updateUI();
			
			        if (!this.getComponentOrientation().isLeftToRight()) {
			            viewport.setViewPosition(new Point(Integer.MAX_VALUE, 0));
			        }
			    }
				""");
		HashMap<TextAttribute, Object> fontCfg = new HashMap<>();
		fontCfg.put(TextAttribute.FAMILY, "宋体");
		fontCfg.put(TextAttribute.BACKGROUND, new Color(0x00f67799));
		fontCfg.put(TextAttribute.FOREGROUND, Color.white);
		fontCfg.put(TextAttribute.SIZE, 33); //字体大小尺寸
//		fontCfg.put(TextAttribute.WEIGHT, TextAttribute.WEIGHT_ULTRABOLD); //最粗体
//		fontCfg.put(TextAttribute.POSTURE, 0.2f); //斜体
		Font font = Font.getFont(fontCfg);
		jTextArea010.setFont(font);
		jTextArea010.setBackground(Color.black);
		
//		jScrollPane010 = new JScrollPane(jScrollPane010, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
//		jScrollPane010 = new JScrollPane(jScrollPane010, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
		jScrollPane010 = new JScrollPane(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
//		jScrollPane010 = new JScrollPane(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
		
		jScrollPane010.setViewportView(jTextArea010);
		
		add(jScrollPane010);
		
		this.setVisible(true);
	}
	
	
	
	
	
	

}