Java实现Windows计算器界面

Java实现Windows计算器界面

前一段时间在学校简单的学习了java，对Java这门我第一次接触的面向对象语言有了一定的了解。

一直没时间整理写的东西，今天打算整理下上传下。

Java相对于C来说比较方便的就是用来写界面（PS：但其实Java写的界面也是十分的“有年代感”）

之前学到写界面时的练手程序就是这个计算器界面

程序其实比较简单，主要就是练习界面的排布等

界面：

代码：

import java.awt.*;

import javax.swing.*;

import java.awt.event.*;

public class CalTest extends JFrame

{

//相关的二级容器和控件声明一下

JTextField showtext;//文本框

JButton bt1;

JButton bt2;

JButton bt3;

JButton bt4;//四个独立的按钮

JPanel panel1;//面板1（25个按钮）

JPanel panel2;//面板2（20个按钮）

http:// JPanel panel3;//面板3（4个按钮）

JPanel panel4;//三个单选框

JButton[] bts1;//左边25个按钮的数组

JButton[] bts2;//右边20个按钮的数组

JButton[] bts3;//4个按钮的数组

JRadioButton[] bts4;//3个单选

public CalTest()

{

init();

}

//初始化窗体及控件的方法

private void init()

{

this.setSize(760,370);

this.setLayout(null);

this.setVisible(true);

showtext=new JTextField();

showtext.setLocation(10, 10);

showtext.setSize(720, 50);

this.add(showtext);

panel1=new JPanel();

panel1.setSize(360, 190);

panel1.setLocation(10, 110);

panel1.setLayout(new GridLayout(5,5,3,3));//设置面板1 网格布局，4行1列

bts1=new JButton[25];

String[] strs1={" ","Inv","In","(",")","Int","sinh","sin","x^2","n！","dms","cosh","cos","x^y","y√x","派","tanh","tan","x^3","3√x","F-E","Exp","Mod","log","10^x"};

for(int i=0;i

{

bts1[i]=new JButton(strs1[i]);

panel1.add(bts1[i]);

}

this.add(panel1);

panel2=new JPanel();

panel2.setSize(260, 190);

panel2.setLocation(400, 70);

panel2.setLayout(new GridLayout(5,4,3,3));//设置面板2 网格布局，5行4列

bts2=new JButton[20];

String[] strs2={"MC","MR","MS","M+","←","CE","C","+/","7","8","9","/","4","5","6","*","1","2","3","-"};

for(int i=0;i

{

bts2[i]=new JButton(strs2[i]);

panel2.add(bts2[i]);

}

this.add(panel2);

panel3=new JPanel();

panel3.setSize(55, 150);

panel3.setLocation(675, 70);

panel3.setLayout(new GridLayout(4,1,3,3));//设置面板3 网格布局，4行1列

bts3=new JButton[4];

String[] strs3={"M-","√","%","1/x"};

for(int i=0;i

{

bts3[i]=new JButton(strs3[i]);

panel3.add(bts3[i]);

}

this.add(panel3);

http:// panel4=new JPanel();

panel4.setSize(50, 50);

panel4.setLocation(20, 80);

panel4.setLayout(new GridLayout(1,3,3,3));//设置面板3 网格布局，4行1列

bts4=new JRadioButton[3];

String[] strs4={"度","弧度","梯度"};

for(int i=0;i

{

bts4[i]=(JRadioButton) new JRadioButton(strs4[i]);

panel4.add(bts4[i]);

}

this.add(panel4);

bt1=new JButton("0");

bt1.setSize(127, 35);

bt1.setLocation(400,263);

this.add(bt1);

bt2=new JButton(".");

bt2.setSize(62, 35);

bt2.setLocation(530,263);

this.add(bt2);

bt3=new JButton("+");

bt3.setSize(62, 35);

bt3.setLocation(595,263);

this.adhttp://d(bt3);

bt4=new JButton("=");

bt4.setSize(55, 75);

bt4.setLocation(675,223);

this.add(bt4);

}

}

public class Test {

public static void main(String[] args) {

CalTest cal=new CalTest();

}

}

{

bts1[i]=new JButton(strs1[i]);

panel1.add(bts1[i]);

}

this.add(panel1);

panel2=new JPanel();

panel2.setSize(260, 190);

panel2.setLocation(400, 70);

panel2.setLayout(new GridLayout(5,4,3,3));//设置面板2 网格布局，5行4列

bts2=new JButton[20];

String[] strs2={"MC","MR","MS","M+","←","CE","C","+/","7","8","9","/","4","5","6","*","1","2","3","-"};

for(int i=0;i

{

bts2[i]=new JButton(strs2[i]);

panel2.add(bts2[i]);

}

this.add(panel2);

panel3=new JPanel();

panel3.setSize(55, 150);

panel3.setLocation(675, 70);

panel3.setLayout(new GridLayout(4,1,3,3));//设置面板3 网格布局，4行1列

bts3=new JButton[4];

String[] strs3={"M-","√","%","1/x"};

for(int i=0;i

{

bts3[i]=new JButton(strs3[i]);

panel3.add(bts3[i]);

}

this.add(panel3);

http:// panel4=new JPanel();

panel4.setSize(50, 50);

panel4.setLocation(20, 80);

panel4.setLayout(new GridLayout(1,3,3,3));//设置面板3 网格布局，4行1列

bts4=new JRadioButton[3];

String[] strs4={"度","弧度","梯度"};

for(int i=0;i

{

bts4[i]=(JRadioButton) new JRadioButton(strs4[i]);

panel4.add(bts4[i]);

}

this.add(panel4);

bt1=new JButton("0");

bt1.setSize(127, 35);

bt1.setLocation(400,263);

this.add(bt1);

bt2=new JButton(".");

bt2.setSize(62, 35);

bt2.setLocation(530,263);

this.add(bt2);

bt3=new JButton("+");

bt3.setSize(62, 35);

bt3.setLocation(595,263);

this.adhttp://d(bt3);

bt4=new JButton("=");

bt4.setSize(55, 75);

bt4.setLocation(675,223);

this.add(bt4);

}

}

public class Test {

public static void main(String[] args) {

CalTest cal=new CalTest();

}

}

{

bts2[i]=new JButton(strs2[i]);

panel2.add(bts2[i]);

}

this.add(panel2);

panel3=new JPanel();

panel3.setSize(55, 150);

panel3.setLocation(675, 70);

panel3.setLayout(new GridLayout(4,1,3,3));//设置面板3 网格布局，4行1列

bts3=new JButton[4];

String[] strs3={"M-","√","%","1/x"};

for(int i=0;i

{

bts3[i]=new JButton(strs3[i]);

panel3.add(bts3[i]);

}

this.add(panel3);

http:// panel4=new JPanel();

panel4.setSize(50, 50);

panel4.setLocation(20, 80);

panel4.setLayout(new GridLayout(1,3,3,3));//设置面板3 网格布局，4行1列

bts4=new JRadioButton[3];

String[] strs4={"度","弧度","梯度"};

for(int i=0;i

{

bts4[i]=(JRadioButton) new JRadioButton(strs4[i]);

panel4.add(bts4[i]);

}

this.add(panel4);

bt1=new JButton("0");

bt1.setSize(127, 35);

bt1.setLocation(400,263);

this.add(bt1);

bt2=new JButton(".");

bt2.setSize(62, 35);

bt2.setLocation(530,263);

this.add(bt2);

bt3=new JButton("+");

bt3.setSize(62, 35);

bt3.setLocation(595,263);

this.adhttp://d(bt3);

bt4=new JButton("=");

bt4.setSize(55, 75);

bt4.setLocation(675,223);

this.add(bt4);

}

}

public class Test {

public static void main(String[] args) {

CalTest cal=new CalTest();

}

}

{

bts3[i]=new JButton(strs3[i]);

panel3.add(bts3[i]);

}

this.add(panel3);

http:// panel4=new JPanel();

panel4.setSize(50, 50);

panel4.setLocation(20, 80);

panel4.setLayout(new GridLayout(1,3,3,3));//设置面板3 网格布局，4行1列

bts4=new JRadioButton[3];

String[] strs4={"度","弧度","梯度"};

for(int i=0;i

{

bts4[i]=(JRadioButton) new JRadioButton(strs4[i]);

panel4.add(bts4[i]);

}

this.add(panel4);

bt1=new JButton("0");

bt1.setSize(127, 35);

bt1.setLocation(400,263);

this.add(bt1);

bt2=new JButton(".");

bt2.setSize(62, 35);

bt2.setLocation(530,263);

this.add(bt2);

bt3=new JButton("+");

bt3.setSize(62, 35);

bt3.setLocation(595,263);

this.adhttp://d(bt3);

bt4=new JButton("=");

bt4.setSize(55, 75);

bt4.setLocation(675,223);

this.add(bt4);

}

}

public class Test {

public static void main(String[] args) {

CalTest cal=new CalTest();

}

}

{

bts4[i]=(JRadioButton) new JRadioButton(strs4[i]);

panel4.add(bts4[i]);

}

this.add(panel4);

bt1=new JButton("0");

bt1.setSize(127, 35);

bt1.setLocation(400,263);

this.add(bt1);

bt2=new JButton(".");

bt2.setSize(62, 35);

bt2.setLocation(530,263);

this.add(bt2);

bt3=new JButton("+");

bt3.setSize(62, 35);

bt3.setLocation(595,263);

this.adhttp://d(bt3);

bt4=new JButton("=");

bt4.setSize(55, 75);

bt4.setLocation(675,223);

this.add(bt4);

}

}

public class Test {

public static void main(String[] args) {

CalTest cal=new CalTest();

}

}

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