java学习--GUI2

JTabbedPane

在面板上设置多个选项卡

import java.awt.Container;
import java.io.File;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;

public class JTabbedPaneDemo {
    public static void main(String[] args) {
        JFrame frame = new JFrame("Welcome to leaf's blog");
        Container cont = frame.getContentPane();
        JTabbedPane tab = new JTabbedPane(JTabbedPane.TOP);
        JPanel pan1 = new JPanel();
        JPanel pan2 = new JPanel();
        JButton but = new JButton("按钮");
        JLabel lab = new JLabel("标签");
        pan1.add(but);
        pan2.add(lab);

        String picPath = "E:" + File.separator + "1.jpg";
        tab.addTab("图片选项", new ImageIcon(picPath), pan1,"图像");
        tab.addTab("文字选项", pan2);
        cont.add(tab);
        frame.setSize(200, 100);
        frame.setLocation(300, 200);
        frame.setVisible(true);
    }
} 

JScrollPane

为图片设置滚动条

import java.awt.Container;
import java.io.File;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.Icon;
import javax.swing.JScrollPane;

public class JScrollPaneDemo {
    public static void main(String[] args) {
        JFrame frame = new JFrame("Welcome to leaf's blog");
        Container cont = frame.getContentPane();
        String picPath = "E:" + File.separator + "1.jpg";
        Icon icon = new ImageIcon(picPath);
        JPanel pan = new JPanel();
        JLabel lab = new JLabel(icon);
        pan.add(lab);
        JScrollPane scr = new JScrollPane(pan,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
                            JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
        cont.add(scr);
        frame.setSize(200, 100);
        frame.setLocation(300, 200);
        frame.setVisible(true);

    }
}

单行文件输入组件JTextField  

import java.awt.GridLayout;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;

public class JTextFieldDemo {
    public static void main(String[] args) {
        JFrame frame = new JFrame("Welcome to leaf's blog");
        JTextField name = new JTextField(30);
        JTextField noed = new JTextField("leaf",10);
        JLabel namelab = new JLabel("输入用户姓名：");
        JLabel noedlab = new JLabel("不可编辑文本：");
        noed.setEnabled(false);
        name.setColumns(30);
        noed.setColumns(10);
        frame.setLayout(new GridLayout(2,2));
        frame.add(namelab);
        frame.add(name);
        frame.add(noedlab);
        frame.add(noed);
        frame.setSize(200, 100);
        frame.setLocation(300, 200);
        frame.setVisible(true);
    }
}

密文输入组件JPasswordField

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPasswordField;

public class JPasswordFieldDemo {
    public static void main(String[] args) {
        JFrame frame = new JFrame("Welcome to leaf's blog");
        JPasswordField jpf1 = new JPasswordField();
        JPasswordField jpf2 = new JPasswordField();
        jpf2.setEchoChar('#');
        JLabel lab1 = new JLabel("默认的回显：");
        JLabel lab2 = new JLabel("回显设置'#'：");
        lab1.setBounds(10,10,100,20);
        lab2.setBounds(10,40,100,20);
        jpf1.setBounds(110,10,80,20);
        jpf2.setBounds(110,40,50,20);
        frame.setLayout(null);
        frame.add(lab1);
        frame.add(lab2);
        frame.add(jpf1);
        frame.add(jpf2);
        frame.setSize(200, 100);
        frame.setLocation(300, 200);
        frame.setVisible(true);
    }
}

 多行文本输入组件JTextAera

import java.awt.GridLayout;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextArea;
import javax.swing.JScrollPane;

public class JTextAreaDemo {
    public static void main(String[] args) {
        JFrame frame = new JFrame("Welcome to leaf's blog");
        JTextArea jta = new JTextArea(20,100);
        jta.setLineWrap(true);
        JScrollPane scr = new JScrollPane(jta,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
                            JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
        JLabel lab = new JLabel("多行文本域：");
        lab.setBounds(10, 10, 120, 20);
        jta.setBounds(130, 10, 150, 100);
        frame.setLayout(new GridLayout(2,1));
        frame.add(lab);
        frame.add(scr);
        frame.setSize(300, 150);
        frame.setLocation(300,200);
        frame.setVisible(true);
    }
}