Java实现图形化界面的日历

本文实例为大家分享了java实jMRYbkM现图形化界面日历的具体代码，供大家参考，具体内容如下

此程序主要功能实现了可以根据用户选择的年月日来定位日期，日期的旁边用#加以标注

主界面如下:

代码如下:

import java.awt.*;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.text.SimpleDateFormat;

import java.util.Calendar;

import java.util.Date;

import javax.swing.*;

class awt{

JFrame jf = new JFrame();

Container con = jf.getContentPane();

JPanel p_mid = new JPanel();

JPanel pTime = new JPanel();

JPanel pTime2 = new JPanel();

JComboBox box1 = new JComboBox();

JComboBox box2 = new JComboBox();

JComboBox box3 = new JComboBox();

String year, month, day; //记录年、月、日

Calendar ca = Calendar.getInstance();

public awt() {

//基本设置

jf.setVisible(true);

jf.setLocation(300, 300);

jf.setDefaultCloseOperation(jf.EXIT_ON_CLOSE);

jf.setLayout(new BorderLayout());

jf.setResizable(false);

p_mid.setLayout(new GridLayout(7, 7, 1, 1));

//调用方法

setTime();

week();

Day();

//自适应窗口大小

jf.pack();

}

//下拉列表框监听器

public class action1 implements ActionListener {

JComboBox bool;

@Override

public void actionPerformed(ActionEvent e) {

bool = (JComboBox)e.getSource();

year = (String)bool.getSelectedItem();

combox();

}

public void combox() {

if(!year.equals("--年份--")) {

String str[] = new String[13];

str[0] = "--月份--";

for(int i=1; i<=12; i++) {

str[i] = Integer.toString(i);

}

box2.setModel(new DefaultComboBoxModel(str));

}

}

}

class action2 implements ActionListener{

JComboBox bool;

String str[];

@Override

public void actionPerformed(ActionEvent e) {

bool = (JComboBox)e.getSource();

month = (String)bool.getSelectedItem();

combox();

}

public void combox() {

if(!month.equals("--月份--") && (month.matches("[13578]") || month.equals("10") || month.equals("12"))) {

str = new String[32];

str[0] = "--日期--";

for(int i=1; i<=31; i++) {

str[i] = Integer.toString(i);

}

box3.setModel(new DefaultComboBoxModel(str));

}else if(!month.equals("--月份--") && (month.matches("[469]") || month.equals("11"))){

str = new String[31];

str[0] = "--日期--";

for(int i=1; i<=30; i++) {

str[i] = Integer.toString(i);

}

box3.setModel(new DefaultComboBoxModel(str));

}else if(!month.equals("--月份--") && month.equals("2")) {

//判断为闰年还是平年

if(Integer.parseInt(year)%4==0 && Integer.parseInt(year)%100!=0) {

//进入此循环，则为闰年，2月份有29天

str = new String[30];

str[0] = "--日期--";

for(int i=1; i<=29; i++) {

str[i] = Integer.toString(i);

}

box3.setModel(new DefaultComboBoxModel(str));

}else {

//进入此循环，则为平年，2月份有28天

str = new String[29];

str[0] = "--日期--";

for(int i=1; i<=28; i++) {

str[i] = Integer.toString(i);

}

box3.setModel(new DefaultComboBoxModel(str));

}

}

}

}

class action3 implements ActionListener{

JComboBox bool;

@Override

public void actionPerformed(ActionEvent e) {

bool = (JComboBox)e.getSource();

day = (String)bool.getSelectedItem();

}

}

class action4 extends JComponent implements ActionListener{

@Override

public void actionPerformed(ActionEvent e) {

//实现方法

if(!year.equals("--年份--") && !month.equals("--月份--") && !day.equals("--日期--")) {

//移除组件

con.remove(p_mid);

p_mid.removeAll();

//实现方法

Week_new();

Day_new();

}

}

//新的星期组件

public void Week_new() {

JButton lab1 = new JButton("一");

JButton lab2 = new JButton("二");

JButton lab3 = new JButton("三");

JButton lab4 = new JButton("四");

JButton lab5 = new JButton("五");

JButton lab6 = new JButton("六");

JButton lab7 = new JButton("七");

lab1.setFont(new Font("微软雅黑", Font.BOLD, 15));

lab2.setFont(new Font("微软雅黑", Font.BOLD, 15));

lab3.setFont(new Font("微软雅黑", Font.BOLD, 15));

lab4.setFont(new Font("微软雅黑", Font.BOLD, 15));

lab5.setFont(new Font("微软雅黑", Font.BOLD, 15));

lab6.setFont(new Font("微软雅黑", Font.BOLD, 15));

lab7.setFont(new Font("微软雅黑", Font.BOLD, 15));

p_mid.add(lab1);

p_mid.add(lab2);

p_mid.add(lab3);

p_mid.add(lab4);

p_mid.add(lab5);

p_mid.add(lab6);

p_mid.add(lab7);

}

//新的天数组件

public void Day_new() {

int temp=1;

ca.set(Integer.parseInt(year), Integer.parseInt(month)-1, Integer.parseInt(day));

int Month_max = ca.getActualMaximum(Calendar.DATE);

int day = ca.get(Calendar.DATE);

ca.set(Calendar.DATE, 1);

int Week = ca.get(Calendar.DAY_OF_WEEK)-1;

if(Week == 0) {

Week = 7;

}

for(int i=1; i<=42; i++) {

if(i>=Week && i

if(temp == day) {

p_mid.add(new Button("#"+temp));

temp++;

continue;

}

p_mid.add(new Button(Integer.toString(temp)));

temp++;

continue;

}

p_mid.add(new Button());

}

con.add(p_mid, BorderLayout.CENTER);

con.validate();

}

}

//------//

public void setTime() {

//声明变量

JLabel labTime = new JLabel();

JButton button = new JButton("查询");

box1.addActionListener(new action1());

box2.addActionListener(new action2());

box3.addActionListener(new action3());

button.addActionListener(new action4());

Date d = new Date();

SimpleDateFormat sdf = new SimpleDateFormat("YYYY-MM-dd");

String time = sdf.format(d);

labTime.setText("北京时间:http://"+time);

labTime.setFont(new Font("微软雅黑", Font.BOLD, 15));

box1.addItem("--年份--");

box1.addItem("2016");

box1.addItem("2017");

box1.addItem("2018");

box1.addItem("2019");

box2.addItem("--月份--");

box3.addItem("--日期--");

pTime.setLayout(new FlowLayout(FlowLayout.LEFT,20,5));

pTime2.setLayout(new FlowLayout(FlowLayout.CENTER,1,0));

pTime.add(labTime);

pTime2.add(box1);

pTime2.add(box2);

pTime2.add(box3);

pTime2.add(button);

pTime.add(pTime2);

con.add(pTime, BorderLayout.NORTH);

}

public void week() {

JButton lab1 = new JButton("一");

JButton lab2 = new JButton("二");

JButton lab3 = new JButton("三");

JButton lab4 = new JButton("四");

JButton lab5 = new JButton("五");

JButton lab6 = new JButton("六");

JButton lab7 = new JButton("七");

lab1.setFont(new Font("微软雅黑", Font.BOLD, 15));

lab2.setFont(new Font("微软雅黑", Font.BOLD, 15));

lab3.setFont(new Font("微软雅黑", Font.BOLD, 15));

lab4.setFont(new Font("微软雅黑", Font.BOLD, 15));

lab5.setFont(new Font("微软雅黑", Font.BOLD, 15));

lab6.setFont(new Font("微软雅黑", Font.BOLD, 15));

lab7.setFont(new Font("微软雅黑", Font.BOLD, 15));

p_mid.add(lab1);

p_mid.add(lab2);

p_mid.add(lab3);

p_mid.add(lab4);

p_mid.add(lab5);

p_mid.add(lab6);

p_mid.add(lab7);

}

public void Day() {

int temp=1;

int Month_max = ca.getActualMaximum(Calendar.DATE); //当前月有几天

int day = ca.get(Calendar.DATE); //当前日期

ca.set(Calendar.DATE, 1);

int Week = ca.get(Calendar.DAY_OF_WEEK)-1; //星期几

if(Week == 0) {

Week = 7;

}

for(int i=1; i<=42; i++) {

Button b = new Button();

if(i>=Week && i

if(temp == day) {

p_mid.add(new Button("#"+temp));

temp++;

conjMRYbkMtinue;

}

p_mid.add(new Button(Integer.toString(temp)));

temp++;

continue;

}

p_mid.add(new Button());

}

con.add(p_mid, BorderLayout.CENTER);

}

}

public class application {

public static void main(String[] args) {

awt at = new awt();

}

}

实现过程中碰到的主要问题有:

1、关于JComBobox组件的更新问题，开始是直接修改值和将组件移除后重新添加，发现都行不通，在查看了JComBobox的源码之后发现底层是调用setModel方法来实现添加元素的，于是我将使用此方法来更新下拉列表框的值，成功解决此问题

box.setModel(new DefaultComboBoxModel(str));

2、将按钮移除重新添加后必须将界面框最小化之后打开才能出现界面，查阅资料后发现Container有一个validate()方法可以用来重绘，于是便添加此方法，成功解决问题

con.validate();

if(temp == day) {

p_mid.add(new Button("#"+temp));

temp++;

continue;

}

p_mid.add(new Button(Integer.toString(temp)));

temp++;

continue;

}

p_mid.add(new Button());

}

con.add(p_mid, BorderLayout.CENTER);

con.validate();

}

}

//------//

public void setTime() {

//声明变量

JLabel labTime = new JLabel();

JButton button = new JButton("查询");

box1.addActionListener(new action1());

box2.addActionListener(new action2());

box3.addActionListener(new action3());

button.addActionListener(new action4());

Date d = new Date();

SimpleDateFormat sdf = new SimpleDateFormat("YYYY-MM-dd");

String time = sdf.format(d);

labTime.setText("北京时间:http://"+time);

labTime.setFont(new Font("微软雅黑", Font.BOLD, 15));

box1.addItem("--年份--");

box1.addItem("2016");

box1.addItem("2017");

box1.addItem("2018");

box1.addItem("2019");

box2.addItem("--月份--");

box3.addItem("--日期--");

pTime.setLayout(new FlowLayout(FlowLayout.LEFT,20,5));

pTime2.setLayout(new FlowLayout(FlowLayout.CENTER,1,0));

pTime.add(labTime);

pTime2.add(box1);

pTime2.add(box2);

pTime2.add(box3);

pTime2.add(button);

pTime.add(pTime2);

con.add(pTime, BorderLayout.NORTH);

}

public void week() {

JButton lab1 = new JButton("一");

JButton lab2 = new JButton("二");

JButton lab3 = new JButton("三");

JButton lab4 = new JButton("四");

JButton lab5 = new JButton("五");

JButton lab6 = new JButton("六");

JButton lab7 = new JButton("七");

lab1.setFont(new Font("微软雅黑", Font.BOLD, 15));

lab2.setFont(new Font("微软雅黑", Font.BOLD, 15));

lab3.setFont(new Font("微软雅黑", Font.BOLD, 15));

lab4.setFont(new Font("微软雅黑", Font.BOLD, 15));

lab5.setFont(new Font("微软雅黑", Font.BOLD, 15));

lab6.setFont(new Font("微软雅黑", Font.BOLD, 15));

lab7.setFont(new Font("微软雅黑", Font.BOLD, 15));

p_mid.add(lab1);

p_mid.add(lab2);

p_mid.add(lab3);

p_mid.add(lab4);

p_mid.add(lab5);

p_mid.add(lab6);

p_mid.add(lab7);

}

public void Day() {

int temp=1;

int Month_max = ca.getActualMaximum(Calendar.DATE); //当前月有几天

int day = ca.get(Calendar.DATE); //当前日期

ca.set(Calendar.DATE, 1);

int Week = ca.get(Calendar.DAY_OF_WEEK)-1; //星期几

if(Week == 0) {

Week = 7;

}

for(int i=1; i<=42; i++) {

Button b = new Button();

if(i>=Week && i

if(temp == day) {

p_mid.add(new Button("#"+temp));

temp++;

conjMRYbkMtinue;

}

p_mid.add(new Button(Integer.toString(temp)));

temp++;

continue;

}

p_mid.add(new Button());

}

con.add(p_mid, BorderLayout.CENTER);

}

}

public class application {

public static void main(String[] args) {

awt at = new awt();

}

}

实现过程中碰到的主要问题有:

1、关于JComBobox组件的更新问题，开始是直接修改值和将组件移除后重新添加，发现都行不通，在查看了JComBobox的源码之后发现底层是调用setModel方法来实现添加元素的，于是我将使用此方法来更新下拉列表框的值，成功解决此问题

box.setModel(new DefaultComboBoxModel(str));

2、将按钮移除重新添加后必须将界面框最小化之后打开才能出现界面，查阅资料后发现Container有一个validate()方法可以用来重绘，于是便添加此方法，成功解决问题

con.validate();

if(temp == day) {

p_mid.add(new Button("#"+temp));

temp++;

conjMRYbkMtinue;

}

p_mid.add(new Button(Integer.toString(temp)));

temp++;

continue;

}

p_mid.add(new Button());

}

con.add(p_mid, BorderLayout.CENTER);

}

}

public class application {

public static void main(String[] args) {

awt at = new awt();

}

}

实现过程中碰到的主要问题有:

1、关于JComBobox组件的更新问题，开始是直接修改值和将组件移除后重新添加，发现都行不通，在查看了JComBobox的源码之后发现底层是调用setModel方法来实现添加元素的，于是我将使用此方法来更新下拉列表框的值，成功解决此问题

box.setModel(new DefaultComboBoxModel(str));

2、将按钮移除重新添加后必须将界面框最小化之后打开才能出现界面，查阅资料后发现Container有一个validate()方法可以用来重绘，于是便添加此方法，成功解决问题

con.validate();

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