From 16326638c96e8807c1dcbeb0574fc970220fb6e5 Mon Sep 17 00:00:00 2001
From: 86135 <86135@192.168.71.54>
Date: Wed, 25 May 2022 18:36:16 +0800
Subject: [PATCH 1/2] JHGFKL

---
 src/java2022spring/NumberView.java | 118 +++++++++++++++++++++++++++++
 src/java2022spring/Test.java       |   3 +-
 2 files changed, 120 insertions(+), 1 deletion(-)
 create mode 100644 src/java2022spring/NumberView.java

diff --git a/src/java2022spring/NumberView.java b/src/java2022spring/NumberView.java
new file mode 100644
index 0000000..c44e2ef
--- /dev/null
+++ b/src/java2022spring/NumberView.java
@@ -0,0 +1,118 @@
+//显示窗体
+package java2022spring;
+
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+import javax.swing.*;
+
+public class NumberView extends JFrame implements ActionListener{
+	public JPanel north=new JPanel();
+	public JPanel center=new JPanel();
+	public JTextField inpuText;
+	public JButton button;    
+	public String inputNumber1=null;
+	public String fuHao=null;
+	
+	public NumberView() {
+		init();
+		addNorthComponent();
+		addCentralButton();
+	}
+	//初始化方法
+	public void init(){
+		setTitle("计算器");
+		setBounds(650,330,500,400);
+		setLayout(new BorderLayout());
+		setResizable(false);
+		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+	}
+	//添加北面控件
+	public void addNorthComponent(){
+		inpuText=new JTextField();
+		inpuText.setPreferredSize(new Dimension(480,50));
+		north.add(inpuText);
+		add(north,BorderLayout.NORTH);
+	}
+	//添加中间按钮
+	public void addCentralButton() {
+		String[] BtText= {"%","√","X^2","1/X",
+						  "CE","C","<<<","+/-",
+						  "1", "2", "3", "+",
+						  "4", "5", "6", "-", 
+						  "7", "8", "9", "*", 
+						  "0", ".", "=", "/", };
+		String regex="[\\+\\-*/.=%√C]";             //
+		center.setLayout(new GridLayout(6,4));
+		for(int i=0;i<24;i++) {
+			button=new JButton(BtText[i]);
+			button.setText(BtText[i]);
+			if(BtText[i].matches(regex)||
+					BtText[i].equals("CE")||
+					BtText[i].equals("<<<")||
+					BtText[i].equals("+/-")||
+					BtText[i].equals("1/X")||
+					BtText[i].equals("X^2")) {
+				button.setFont(new Font("粗体",Font.BOLD,17));
+				button.setForeground(Color.red);
+			}
+
+			
+			/*matches() 方法用于检测字符串是否匹配给定的正则表达式。等同于如下代码
+			 * if(BtText[i].equals("+")||
+					BtText[i].equals("-")||
+					BtText[i].equals("*")||
+					BtText[i].equals("/")||
+					BtText[i].equals("=")||
+					BtText[i].equals("."))
+			{
+				button.setFont(new Font("粗体",Font.BOLD,20));
+				button.setForeground(Color.red);
+			}*/
+			button.addActionListener(this);
+			center.add(button);
+		}
+		add(center,BorderLayout.CENTER);
+	}
+	
+	public void actionPerformed(ActionEvent e) {
+		String str=e.getActionCommand();         				 //获取封装在事件中的“命令”字符串
+		if("0123456789.".indexOf(str)!=-1)   					//使数字和小数点显示在文本框上
+		{
+		this.inpuText.setText(inpuText.getText()+str);  		//保存前面点击的数字
+		this.inpuText.setHorizontalAlignment(JTextField.RIGHT); //将文本从文本框的右边开始显示
+		}
+		else if(str.matches("[\\+\\-*/.=%√C]{1}")||
+				str.equals("+")||str.equals("-")||str.equals("*")||str.equals("/"))
+		{
+			fuHao=str;                    			        //fuHao用来存放点击的运算符号
+			inputNumber1=this.inpuText.getText();          //inputNumber1用来存放之前点击的数字
+			this.inpuText.setText("");                    //运算符号不显示在文本框上
+		}
+		else if(str.equals("=")){
+			
+			Double Number1=Double.valueOf(inputNumber1);
+			Double Number2=Double.valueOf(this.inpuText.getText());
+			Double result=null;
+			switch(fuHao) {
+			case "+":
+				result=Number1 + Number2;
+				break;
+			case "-":
+				result=Number1 - Number2;
+				break;
+			case "*":
+				result=Number1 * Number2;
+				break;
+			case "/":
+				if(Number2!=0) {
+					result=Number1 / Number2;
+				}
+				break;
+			}
+			this.inpuText.setText(result.toString());
+		}
+	}
+}
+ 
\ No newline at end of file
diff --git a/src/java2022spring/Test.java b/src/java2022spring/Test.java
index 24deb29..4e2fe4b 100644
--- a/src/java2022spring/Test.java
+++ b/src/java2022spring/Test.java
@@ -2,6 +2,7 @@ package java2022spring;
 
 public class Test {
 	public static void main(String[] args) {
-		System.out.println("Hello world!");
+		NumberView carculator=new NumberView();
+		carculator.setVisible(true);
 	}
 }
-- 
Gitee


From 0b5a97871001ec635af418a0711f104996f672b7 Mon Sep 17 00:00:00 2001
From: 86135 <86135@192.168.71.54>
Date: Wed, 25 May 2022 21:11:13 +0800
Subject: [PATCH 2/2] =?UTF-8?q?=E7=AC=AC=E4=B8=80=E6=AC=A1=E6=8F=90?=
 =?UTF-8?q?=E4=BA=A4?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/java2022spring/NumberView.java | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/java2022spring/NumberView.java b/src/java2022spring/NumberView.java
index c44e2ef..d7e2ef1 100644
--- a/src/java2022spring/NumberView.java
+++ b/src/java2022spring/NumberView.java
@@ -69,7 +69,8 @@ public class NumberView extends JFrame implements ActionListener{
 			{
 				button.setFont(new Font("粗体",Font.BOLD,20));
 				button.setForeground(Color.red);
-			}*/
+			}此处借鉴了视频  https://www.bilibili.com/video/BV1d54y1s7uC?p=6  中的处理方法
+			*/
 			button.addActionListener(this);
 			center.add(button);
 		}
@@ -83,8 +84,10 @@ public class NumberView extends JFrame implements ActionListener{
 		this.inpuText.setText(inpuText.getText()+str);  		//保存前面点击的数字
 		this.inpuText.setHorizontalAlignment(JTextField.RIGHT); //将文本从文本框的右边开始显示
 		}
-		else if(str.matches("[\\+\\-*/.=%√C]{1}")||
-				str.equals("+")||str.equals("-")||str.equals("*")||str.equals("/"))
+		else if(str.equals("%")||str.equals("√")||str.equals("X^2")||
+				str.equals("1/X")||str.equals("CE")||str.equals("C") ||
+				str.equals("<<<")||str.equals("+/-")||str.equals("+")||
+				str.equals("-")||str.equals("*")||str.equals("/"))
 		{
 			fuHao=str;                    			        //fuHao用来存放点击的运算符号
 			inputNumber1=this.inpuText.getText();          //inputNumber1用来存放之前点击的数字
-- 
Gitee