实验十实验十一实验十二

   package DYL;

import java.awt.Container;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.WindowConstants;

public class DYL extends JFrame{

public void Create(String title) {

JFrame jf =new JFrame(title);

Container c=jf.getContentPane();

jf.setVisible(true);

jf.setLayout(null);

jf.setSize(400,400);

jf.setBounds(0,0,230,300);

JButton b1=new JButton("1");

JButton b2=new JButton("2");

JButton b3=new JButton("3");

JButton b4=new JButton("4");

JButton b5=new JButton("5");

JButton b6=new JButton("6");

JButton b7=new JButton("7");

JButton b8=new JButton("8");

JButton b9=new JButton("9");

JButton b10=new JButton("0");

JButton b11=new JButton("+");

JButton b12=new JButton("-");

JButton b13=new JButton("*");

JButton b14=new JButton("/");

JButton b15=new JButton("en");

b1.setBounds(10,10,50,50);

b2.setBounds(60,10,50,50);

b3.setBounds(110,10,50,50);

b4.setBounds(10,60,50,50);

b5.setBounds(60,60,50,50);

b6.setBounds(110,60,50,50);

b7.setBounds(10,110,50,50);

b8.setBounds(60,110,50,50);

b9.setBounds(110,110,50,50);

b10.setBounds(10,160,50,50);

b11.setBounds(60,160,50,50);

b12.setBounds(110,160,50,50);

b13.setBounds(160,10,50,50);

b14.setBounds(160,60,50,50);

b15.setBounds(160,110,50,100);

c.add(b1);

c.add(b2);

c.add(b3);

c.add(b4);

c.add(b5);

c.add(b6);

c.add(b7);

c.add(b8);

c.add(b9);

c.add(b10);

c.add(b11);

c.add(b12);

c.add(b13);

c.add(b14);

c.add(b15);

jf.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

}

public static void main(String[] args) {

new ShiYan10().Create("计算器");

}

}

2.总结

通过此次实验，很好地熟悉了图形用户界面的设计原则

package shiyan;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;

public class Jisuanqi extends Frame implements ActionListener{
public Jisuanqi() {
super("计算器");
Frame ff=new Frame("framework test");
ff.setSize(400,100);
ff.setLocation(300,240);
ff.setLayout(new FlowLayout());
final TextField f1=new TextField("10",8);
ff.add(f1);

Label l1=new Label("+");
ff.add(l1);
TextField f2=new TextField("10",8);
ff.add(f2);
Button b1=new Button("=");
ff.add(b1);
TextField f3=new TextField(10);
ff.add(f3);
ff.addWindowListener(new myclose());
ff.setVisible(true);
b1.addActionListener(new ActionListener()
{public void actionPerformed(ActionEvent e)
{double c;
String s1=f1.getText();
double a=Integer.parseInt(s1);
String s2=f2.getText();
double b=Integer.parseInt(s2);
c=a+b;
String m=String.valueOf(c);
f3.setText(m);
}

private double Integer(String s) {
return 0;
}
});

}

class myclose implements WindowListener{

public void windowActivated(WindowEvent arg0) {

}

public void windowClosed(WindowEvent arg0) {
}

public void windowClosing(WindowEvent arg0) {
System.exit(0);
}

public void windowDeactivated(WindowEvent arg0) {
}

public void windowDeiconified(WindowEvent arg0) {
// TODO Auto-generated method stub
}

public void windowIconified(WindowEvent arg0) {
}

public void windowOpened(WindowEvent arg0) {
}
}

public static void main(String[] args) {
new Jisuanqi();
}

public void actionPerformed(ActionEvent arg0)

{
}

}

二、结果

10+10=20

三、心得

1、创建按钮以后，要用add把它添加到窗口上

2、得到一个输入框中的内容用gettext

package ziwojieshao;
import java.awt.FlowLayout;
import javax.swing.*;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class AA extends JFrame{
public AA()
{
JFrame jf1=new JFrame ("Hello");
jf1.setLayout(new FlowLayout());
jf1.getContentPane().add(new JButton("姓名")) ;
jf1.getContentPane().add(new JTextField("廉春霖",09)) ;

JRadioButton j1=new JRadioButton("男",true);
JRadioButton j2=new JRadioButton("女");
ButtonGroup g=new ButtonGroup();
g.add(j1);
g.add(j2);
JPanel p1=new JPanel();
p1.add(j1);
p1.add(j2);
jf1.getContentPane().add(p1);
jf1.setSize(320,210);

String proList[] = { "年龄","民族" ,"籍贯","学号","学院","专业"};
JComboBox comboBox;
Container conPane = getContentPane(); 
comboBox = new JComboBox(proList); 
comboBox.setEditable(true); 
conPane.add(comboBox);
JTextField b=new JTextField(20);
jf1.add(conPane);
jf1.add(b);
comboBox.addActionListener(new ActionListener()
{public void actionPerformed(ActionEvent e)
{ 
if(comboBox.getSelectedItem().equals("年龄"))
b.setText("20");
else if(comboBox.getSelectedItem().equals("民族"))
b.setText("汉");
else if(comboBox.getSelectedItem().equals("籍贯"))
b.setText("青海 海东");
else if(comboBox.getSelectedItem().equals("学号"))
b.setText("20173311108");
else if(comboBox.getSelectedItem().equals("学院"))
b.setText("计算机学院");
else if(comboBox.getSelectedItem().equals("专业"))
b.setText("网络工程");
}
});

jf1.setVisible(true);
}
public static void main (String[] args) {
new AA()
}

二.实验心得

实验看似简单，但是操作起来还是有一定的难度