62.【GUI编程】（五）

基本思路:
1.删除分组的操作。

package KuangStudy;
import javax.swing.*;
import java.awt.*;
import java.net.URL;
public class first extends JFrame  {
    public first(){
        //框体的容器
        Container container=this.getContentPane();
        //单选框
       JRadioButton jRadioButton_one=new JRadioButton("A 你是大傻瓜");
       JRadioButton jRadioButton_two=new JRadioButton("B 我是大傻瓜");
       JRadioButton jRadioButton_three=new JRadioButton("C 我俩都是大傻瓜");
 /*      //由于单选框只能选择一个，所以我们要对其分组
        ButtonGroup buttonGroup_one=new ButtonGroup();
        buttonGroup_one.add(jRadioButton_one);
        buttonGroup_one.add(jRadioButton_two);
        buttonGroup_one.add(jRadioButton_three);
*/
        //添加到窗体中
        container.add(jRadioButton_one,BorderLayout.NORTH);
        container.add(jRadioButton_two,BorderLayout.CENTER);
        container.add(jRadioButton_three,BorderLayout.SOUTH);
        setSize(500,500);
        setVisible(true);
        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        setLocationRelativeTo(null);
    }
}

package KuangStudy;
public class Test {
    public static void main(String[] args) {
        first first_one=new first();
}
}

基本思路:
1.记住多选框的类: JcheckBox()

package KuangStudy;
import javax.swing.*;
import java.awt.*;
import java.net.URL;
public class first extends JFrame  {
    public first(){
        //框体的容器
        Container container=this.getContentPane();
        //多选框
        JCheckBox jCheckBox_one=new JCheckBox("A 谁是傻子？");
        JCheckBox jCheckBox_two=new JCheckBox("B 吉士先生");
        JCheckBox jCheckBox_three=new JCheckBox("C 李明");
        //添加到窗体中去
        container.add(jCheckBox_one,BorderLayout.NORTH);
        container.add(jCheckBox_two,BorderLayout.CENTER);
        container.add(jCheckBox_three,BorderLayout.SOUTH);
        //窗体显示
        setSize(500,500);
        setVisible(true);
        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        setLocationRelativeTo(null);
    }
}

package KuangStudy;
public class Test {
    public static void main(String[] args) {
        first first_one=new first();
}
}

基本思路:
1.理解 JComBox 类

package KuangStudy;
import javax.swing.*;
import java.awt.*;
import java.net.URL;
public class first extends JFrame  {
    public first(){
        //框体的容器
        Container container=this.getContentPane();
        //下拉框
        JComboBox jComboBox_one=new JComboBox();
        //下拉框添加
        jComboBox_one.addItem(null);
        jComboBox_one.addItem("正字热映...");
        jComboBox_one.addItem("已下架");
        jComboBox_one.addItem("即将上映");
        //添加到面板优化位置
        JPanel jPanel=new JPanel(new GridLayout(10,1));
        jPanel.add(jComboBox_one);
        pack();
        //添加到窗体
        container.add(jPanel);
        //窗体显示
        setSize(500,500);
        setVisible(true);
        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        setLocationRelativeTo(null);
    }
}

package KuangStudy;
public class Test {
    public static void main(String[] args) {
        first first_one=new first();
}
}

基本思路:
1.了解 JList
2.了解 Vector 这个集合
3.JList 里面要添加集合/数组

package KuangStudy;
import javax.swing.*;
import java.awt.*;
import java.net.URL;
import java.util.Vector;
public class first extends JFrame  {
    public first(){
        //框体的容器
        Container container=this.getContentPane();
       //列表框
        Vector vector=new Vector();
        JList jList_one=new JList(vector);
        vector.add(1);
        vector.add(1);
        vector.add(1);
        vector.add(1);
        //添加到窗体
        container.add(jList_one);
        //窗体显示
        setSize(500,500);
        setVisible(true);
        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        setLocationRelativeTo(null);
    }
}

package KuangStudy;
public class Test {
    public static void main(String[] args) {
        first first_one=new first();
}
}

基本思路:
1.JTextField (文本框)
2.

package KuangStudy;
import javax.swing.*;
import java.awt.*;
import java.net.URL;
import java.util.Vector;
public class first extends JFrame  {
    public first(){
        //框体的容器
        Container container=this.getContentPane();
        JTextField jTextField_one=new JTextField("hello");
        JTextField jTextField_two=new JTextField("world");
        jTextField_two.setBounds(50,50,100,100);
        container.add(jTextField_two);
        container.add(jTextField_one,BorderLayout.CENTER);
        //窗体显示
        setSize(500,500);
        setVisible(true);
        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        setLocationRelativeTo(null);
    }
}

package KuangStudy;
public class Test {
    public static void main(String[] args) {
        first first_one=new first();
}
}

基本思路:
1.JPasswordText  密码框加密

package KuangStudy;
import javax.swing.*;
import java.awt.*;
import java.net.URL;
import java.util.Vector;
public class first extends JFrame  {
    public first(){
        //框体的容器
        Container container=this.getContentPane();
        JPasswordField jPasswordField_one=new JPasswordField("请输入密码");
        JPasswordField jPasswordField_two=new JPasswordField("请输入您的账号");
        container.add(jPasswordField_one,BorderLayout.NORTH);
        container.add(jPasswordField_two,BorderLayout.CENTER);
        //窗体显示
        setSize(500,500);
        setVisible(true);
        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        setLocationRelativeTo(null);
    }
}

package KuangStudy;
public class Test {
    public static void main(String[] args) {
        first first_one=new first();
}
}