有一个Java程序，大家帮忙改改，我不太会Java
如题，是网上找的计算器。但是它这个界面不太美观，按钮太大文本框太小，大家帮我改改，帮我把界面改的好看一些。是用Eclipse写的。import javax.swing.*
import java.awt.*;
import java.awt.event.*;
public class Calculator extends JFrame
{
private static final long serialVersionUID = 8199443193151152362L;
private JButton bto_s=new JButton("sqrt");
private JButton bto_zf=new JButton("+/-");
private JButton bto_ce=new JButton("CE");
private JButton bto_c=new JButton("C");
private JButton bto_7=new JButton("7");
private JButton bto_8=new JButton("8");
private JButton bto_9=new JButton("9");
private JButton bto_chu=new JButton("/");
private JButton bto_4=new JButton("4");
private JButton bto_5=new JButton("5");
private JButton bto_6=new JButton("6");
private JButton bto_cheng=new JButton("*");
private JButton bto_1=new JButton("1");
private JButton bto_2=new JButton("2");
private JButton bto_3=new JButton("3");
private JButton bto_jian=new JButton("-");
private JButton bto_0=new JButton("0");
private JButton bto_dian=new JButton(".");
private JButton bto_deng=new JButton("=");
private JButton bto_jia=new JButton("+");
JButton button[]={bto_s,bto_zf,bto_ce,bto_c,bto_7,bto_8,bto_9,bto_chu,bto_4,bto_5,bto_6,bto_cheng,bto_1,bto_2,bto_3,bto_jian,
bto_0,bto_dian,bto_deng,bto_jia};
private JTextField text_double;// 计算器主文本框
private String operator = "="; //当前运算的运算符
private boolean firstDigit = true; // 标志用户按的是否是整个表达式的第一个数字,或者是运算符后的第一个数字
private double resultNum = 0.0; // 计算的中间结果
private boolean operateValidFlag = true; //判断操作是否合法
public Calculator() //类的构造函数
{
super("Calculator");
this.setBounds(500, 255, 300, 300);
this.setResizable(false);
this.setBackground(Color.blue);
this.getContentPane().setLayout(new BorderLayout());//设置布局
text_double=new JTextField("0.",50);//设置文本区
text_double.setHorizontalAlignment(JTextField.RIGHT);//设置水平对齐方式未右对齐
text_double.setBounds(500,255,100,100);
this.getContentPane().add(text_double,BorderLayout.NORTH);//将文本区添加到Content北部
JPanel panel=new JPanel(new GridLayout(5,4));//在内容窗口添加一个网格布局
this.getContentPane().add(panel);//添加panel面板
for(int i=0;i<button.length;i++)//在面板上添加按钮
panel.add(button[i]);
for(int i=0;i<button.length;i++)
text_double.setEditable(false);//文本框不可编辑
this.setVisible(true);
}
public static void main(String[] args)
{
new Calculator();
}
} --------------------编程问答-------------------- 我觉得你的思路比那些直接伸手就是要毕设的好一点！有前途，少年。 --------------------编程问答-------------------- 修改了下字体:
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import java.awt.GridLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class Calculator extends JFrame
{
private static final long serialVersionUID = 8199443193151152362L;
private JButton bto_s = new JButton("sqrt");
private JButton bto_zf = new JButton("+/-");
private JButton bto_ce = new JButton("CE");
private JButton bto_c = new JButton("C");
private JButton bto_7 = new JButton("7");
private JButton bto_8 = new JButton("8");
private JButton bto_9 = new JButton("9");
private JButton bto_chu = new JButton("/");
private JButton bto_4 = new JButton("4");
private JButton bto_5 = new JButton("5");
private JButton bto_6 = new JButton("6");
private JButton bto_cheng = new JButton("*");
private JButton bto_1 = new JButton("1");
private JButton bto_2 = new JButton("2");
private JButton bto_3 = new JButton("3");
private JButton bto_jian = new JButton("-");
private JButton bto_0 = new JButton("0");
private JButton bto_dian = new JButton(".");
private JButton bto_deng = new JButton("=");
private JButton bto_jia = new JButton("+");
JButton button[] =
{bto_s, bto_zf, bto_ce, bto_c, bto_7, bto_8, bto_9, bto_chu, bto_4, bto_5, bto_6, bto_cheng, bto_1, bto_2,
bto_3, bto_jian, bto_0, bto_dian, bto_deng, bto_jia};
private JTextField text_double;// 计算器主文本框
private String operator = "="; //当前运算的运算符
private boolean firstDigit = true; // 标志用户按的是否是整个表达式的第一个数字,或者是运算符后的第一个数字
private double resultNum = 0.0; // 计算的中间结果
private boolean operateValidFlag = true; //判断操作是否合法
public Calculator() //类的构造函数
{
super("Calculator");
this.setBounds(500, 255, 300, 300);
this.setResizable(false);
this.setBackground(Color.blue);
this.getContentPane().setLayout(new BorderLayout());//设置布局
text_double = new JTextField("0.", 50);//设置文本区
text_double.setHorizontalAlignment(JTextField.RIGHT);//设置水平对齐方式未右对齐
text_double.setBounds(500, 255, 100, 100);
this.getContentPane().add(text_double, BorderLayout.NORTH);//将文本区添加到Content北部
JPanel panel = new JPanel(new GridLayout(5, 4));//在内容窗口添加一个网格布局
this.getContentPane().add(panel);//添加panel面板
for (int i = 0; i < button.length; i++)
{
button[i].setFont(new Font("",Font.BOLD,18));
//在面板上添加按钮
panel.add(button[i]);
}
for (int i = 0; i < button.length; i++)
text_double.setEditable(false);//文本框不可编辑
this.setVisible(true);
}
public static void main(String[] args)
{
new Calculator();
}
} --------------------编程问答--------------------
＋1
--------------------编程问答-------------------- 我晕，这也行！如果只是为了画个窗口，其实用VB6.0很好画！还更美观！ --------------------编程问答-------------------- text_double.setSize lz用这个试试 --------------------编程问答-------------------- java自定义按钮外观
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import java.awt.FlowLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.UIManager;
import javax.swing.plaf.synth.SynthLookAndFeel;
public class MyButton {
JFrame frame = new JFrame("Test Buttons");
JButton jButton = new JButton("JButton"); // 按钮
public MyButton() {
frame.setLayout(new FlowLayout());
frame.getContentPane().add(jButton); }
public void show() {
frame.pack();
frame.show(); }
public static void main(String[] args) {
MyButton tb = new MyButton();
tb.show();
SynthLookAndFeel slf = new SynthLookAndFeel();
try {
slf.load(MyButton.class.getResourceAsStream("mybutton.xml"), MyButton.class); UIManager.setLookAndFeel(slf); } catch (Exception e) { e.printStackTrace(); return; } }}
补充：Java , Eclipse
