我不会JAVA,他问我,我问你们~~
设计一个如图所示的换算器程序。其中换算公式如下:
华氏温度转摄氏温度:C=5*(F-32)/9
摄氏温度转华氏温度:F=32+C*9/5
英里转公里:KM=miles/0.62
公里转英里:mile=0.62*KM
设计一个如图所示的换算器程序。其中换算公式如下:
华氏温度转摄氏温度:C=5*(F-32)/9
摄氏温度转华氏温度:F=32+C*9/5
英里转公里:KM=miles/0.62
公里转英里:mile=0.62*KM
楼主可以去找来看看,大同小异
import java.awt.*;
import java.awt.event.*;
public class Mymain implements ActionListener
{
JFrame jf=new JFrame("转换器");
JPanel jp=new JPanel();
JLabel jl1=new JLabel("输入数据");
JLabel jl2=new JLabel("转换数据");
JLabel jl3=new JLabel("选择转换关系:");
JTextField jt1=new JTextField();
JTextField jt2=new JTextField();
JButton jb[]={new JButton("1"),new JButton("2"),new JButton("3"),new JButton("4"),new JButton("5"),
new JButton("6"),new JButton("7"),new JButton("8"),new JButton("9"),new JButton("0"),
new JButton("C"),new JButton("S")};//C按钮是实现转换功能,S按钮实现的是清空功能.
JRadioButton jrb[]={new JRadioButton("摄氏温度换算为华氏温度"),new JRadioButton("华氏温度换算为摄氏温度"),
new JRadioButton("公里数换算为英里数"),new JRadioButton("英里数换算为公里数")};
ButtonGroup bg=new ButtonGroup();
private double C;
private double F;
private double KM;
private double mile;
public int a=0,b=0,j=0,m=0,s1=1;
public String s="";
public Mymain()
{
jp.setLayout(null);
jl1.setBounds(30,10,60,20);
jp.add(jl1);
jt1.setBounds(90,10,80,20);
jp.add(jt1);
jl2.setBounds(185,10,60,20);
jp.add(jl2);
jt2.setBounds(245,10,80,20);
jp.add(jt2);
jl3.setBounds(25,50,150,20);
for(int i=0;i<12;i++)
{
if(i==0)
{
jb[i].setBounds(285,50,50,20);
jp.add(jb[i]);
jb[i].addActionListener(this);
}
else if(i%3!=0)
{
++a;
jb[i].setBounds(285+a*50,50+j*30,50,20);
jp.add(jb[i]);
jb[i].addActionListener(this);
}
else
{
j++;
a=0;
jb[i].setBounds(285,50+j*30,50,20);
jp.add(jb[i]);
jb[i].addActionListener(this);
}
}
for(int i=0;i<4;i++)
{
jrb[i].setBounds(25,70+i*20,250,20);
bg.add(jrb[i]);
jp.add(jrb[i]);
jrb[i].addActionListener(this);
}
jp.add(jl3);
jf.add(jp);
jf.setVisible(true);
jf.setBounds(10,10,500,300);
}
public void actionPerformed(ActionEvent e)
{
for(int i=0;i<12;i++)
{
if(e.getSource()==jb[i]&&i<9)
{
s=s+(i+1);
jt1.setText(s);
}
else if(e.getSource()==jb[10])
{
try
{
b=Integer.parseInt(jt1.getText().trim());
if(jrb[0].isSelected())
{
C=5*(b-32)/9;
s="";
s=s+C;
jt2.setText(s);
}
else if(jrb[1].isSelected())
{
F=32+b*9/5;
s="";
s=s+F;
jt2.setText(s);
}
else if(jrb[2].isSelected())
{
KM=b/0.62;
s="";
s=s+KM;
jt2.setText(s);
}
else if(jrb[3].isSelected())
{
mile=b*0.62;
s="";
s=s+mile;
jt2.setText(s);
}
}
catch (Exception ee){}
}
else if(e.getSource()==jb[11])
{
jt1.setText("");
jt2.setText("");
s="";
}
else if(e.getSource()==jb[9])
{
//s1="0";
s=s+(s1-1);
jt1.setText(s);
}
}
}
public static void main(String[] args)
{
Mymain m=new Mymain();
}
}