我的最终结果是：7月3日上午9点18分 2017年9月9日。
918分钟是很奇怪的，我不愿意做那么多的数学计算来确定它的时间。以下是我的代码。package learn;
import java.time.*;
import java.time.temporal.*;
class time {
public static void main (String[] args) {
LocalDateTime now = LocalDateTime.now();
int minute = now.get(ChronoField.MINUTE_OF_DAY);
int hour = now.get(ChronoField.HOUR_OF_DAY);
int day = now.get(ChronoField.DAY_OF_MONTH);
int month = now.get(ChronoField.MONTH_OF_YEAR);
int year = now.get(ChronoField.YEAR_OF_ERA);
int era = now.get(ChronoField.ERA);
if (hour < 12) {
System.out.println("Good morning you sack o' shit.");
}
else if (hour < 17) {
System.out.println("Get a job hobo. ");
}
else {
System.out.println("Night night, jobless");
}
System.out.print("It's: ");
if (minute != 0) {
System.out.print("" + minute + " ");
System.out.print( (minute != 1) ? "minutes" : "minute");
System.out.print(" past");
}
System.out.print(" ");
System.out.print( (hour > 12) ? (hour - 12) : hour);
System.out.print(" o'clock on ");
switch (month) {
case 1: System.out.println("January"); break;
case 2: System.out.println("February"); break;
case 3: System.out.println("March"); break;
case 4: System.out.println("April"); break;
case 5: System.out.println("May"); break;
case 6: System.out.println("June"); break;
case 7: System.out.println("July"); break;
case 8: System.out.println("August"); break;
case 9: System.out.println("September"); break;
case 10: System.out.println("October"); break;
case 11: System.out.println("November"); break;
case 12: System.out.println("December"); break;
}
System.out.println(" " + day + ", " + year + ", " + era + "st Era.");
}
}
答案 0 :(得分：2)
您正在使用using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Data.SQLite;
namespace Baby_Tracker
{
public partial class BabyTracker : Form
{
BabyEntryForm babyEntryForm = new BabyEntryForm();
BabyUpdateForm babyUpdateForm = new BabyUpdateForm();
BabyDeleteForm babyDeleteForm = new BabyDeleteForm();
public BabyTracker()
{
InitializeComponent();
comboBoxNameRetrival();
}
/*
* Allows for the BabyEntryForm to be opened for the user to
* add a new entry for a baby.
*/
private void newBaby_btn_Click(object sender, EventArgs e)
{
babyEntryForm.Show();
}
/*
* Allows for the BabyUpdateForm to be opened for the user to
* add a updated entry for a baby.
*/
private void editBaby_btn_Click(object sender, EventArgs e)
{
babyUpdateForm.Show();
}
/*
* Calls the FirstName table from the SQLite database to be displayed inside
* the combob box. This is also set to refresh as a new baby is entered into the
* application.
*/
public void comboBoxNameRetrival()
{
DataTable dt = new DataTable();
string connectionString = "Data Source = BabyDatabase.sqlite; Version=3;";
using (SQLiteConnection connection = new SQLiteConnection(connectionString))
{
using (SQLiteDataAdapter da = new SQLiteDataAdapter("SELECT FirstName FROM BabyList", connection))
{
dt.Clear();
da.Fill(dt);
babySelector_cmbo.DisplayMember = "FirstName";
babySelector_cmbo.DataSource = dt;
connection.Close();
}
}
}
/*
* Used for the selection of the combobox name to be changed throughout the program
* as needed. Also, the image for each baby is changed here where the path is called
* from the database to then load the image for each baby based off of the selection
* from the combobox
*
* Note: The heart of changing data between differenet babies.
*/
private void babySelector_cmbo_SelectedIndexChanged(object sender, EventArgs e)
{
name_lb.Text = babySelector_cmbo.GetItemText(babySelector_cmbo.SelectedItem); //loads the selected name from combobox to theis label
string query = "SELECT BabyImagePath FROM BabyList where FirstName = '" + babySelector_cmbo.GetItemText(babySelector_cmbo.SelectedItem) + "'";
string connectionString = "Data Source = BabyDatabase.sqlite; Version=3;";
SQLiteConnection connection = new SQLiteConnection(connectionString);
SQLiteCommand command = new SQLiteCommand(query, connection);
connection.Open();
SQLiteDataReader reader = command.ExecuteReader();
while (reader.Read())
{
string result = Convert.ToString(reader["BabyImagePath"]);
userImage_box.Image = Image.FromFile(result);
}
}
/*
* Calls the BabyDeleteForm to allow for the user to delete an
* baby entry.
*/
private void deleteBaby_btn_Click(object sender, EventArgs e)
{
babyDeleteForm.Show();
}
}
}
，这不是您想要的（下午3:18将相当于当天的918 o 分钟，因为它已经过了918分钟当天（午夜）开始至下午3:18）。
您想要的字段是using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SQLite;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace Baby_Tracker
{
class AddUpdateDeleteBaby
{
//String declarations
public string path;
public string targetPath;
/*
* Method is using the data from the BabyEntryForm textboxes to create a new row for
* each new baby entered. The connection and all database requires are set up here.
* BabyList is the table that is being used for the storage of the information.
*/
public void addBabyConnection()
{
string connectionString = "Data Source = BabyDatabase.sqlite; Version=3;";
using (SQLiteConnection conn = new SQLiteConnection(connectionString))
using (SQLiteCommand command = conn.CreateCommand())
{
command.CommandText = "INSERT INTO BabyList (ID, FirstName, MiddleName, LastName, DOB, BirthWeight, BirthLength, BirthHeadCir, BabyImagePath) VALUES (@id, @firstName, @middleName, @lastName, @DOB, @birthWeight, @birthLength, @birthHeadCir, @babyImagePath)";
command.Parameters.AddWithValue("@id", null);
command.Parameters.AddWithValue("@firstName", BabyEntryForm.firstName);
command.Parameters.AddWithValue("@middleName", BabyEntryForm.middleName);
command.Parameters.AddWithValue("@lastName", BabyEntryForm.lastName);
command.Parameters.AddWithValue("@DOB", BabyEntryForm.dob);
command.Parameters.AddWithValue("@birthWeight", BabyEntryForm.weight);
command.Parameters.AddWithValue("@birthLength", BabyEntryForm.length);
command.Parameters.AddWithValue("@birthHeadCir", BabyEntryForm.headCir);
command.Parameters.AddWithValue("@babyImagePath", BabyEntryForm.imagePath);
conn.Open();
command.ExecuteNonQuery();
BabyTracker bt = new BabyTracker();
bt.comboBoxNameRetrival();
}
}
/* Allows for a image to be selected for the baby entry. This is called via
* both new baby entry and also update baby entry. Only JPEG na dPNG images
* are accepted here. The files are then saved to a folder (BabyImages) in
* the application.
*/
public void babyImagePath()
{
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.InitialDirectory = @"C:\";
openFileDialog.Title = "Selet Baby Profile Image";
openFileDialog.Filter = "Image files (*.jpg, *.jpeg, *.png) | *.jpg; *.jpeg; *.png";
openFileDialog.FilterIndex = 2;
openFileDialog.RestoreDirectory = true;
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
path = @"C:\Users\Brandon\Documents\Visual Studio 2017\Projects\Baby_Tracker\Baby_Tracker\BabyImages"; //save to file location
targetPath = Path.Combine(path, Path.GetFileName(openFileDialog.FileName));
File.Copy(openFileDialog.FileName, targetPath, true);
}
}
/* Connections to the database to use the information entered from the
* BabyUpdateForm to update the database based upon the fields that
* have entered data.
*/
public void updateBaby()
{
string connectionString = "Data Source = BabyDatabase.sqlite; Version=3;";
using (SQLiteConnection conn = new SQLiteConnection(connectionString))
using (SQLiteCommand command = conn.CreateCommand())
{
command.CommandText = "UPDATE BabyList SET FirstName = @firstName, MiddleName = @middleName, LastName = @lastName, DOB = @DOB, BirthWeight = @birthWeight, BirthLength = @birthLength, BirthHeadCir = @birthHeadCir, BabyImagePath = @babyImagePath WHERE FirstName = '"+BabyUpdateForm.comboName+"'";
command.Parameters.AddWithValue("@firstName", BabyUpdateForm.updateFirstName);
command.Parameters.AddWithValue("@middleName", BabyUpdateForm.updateMiddleName);
command.Parameters.AddWithValue("@lastName", BabyUpdateForm.updateLastName);
command.Parameters.AddWithValue("@DOB", BabyUpdateForm.updatedob);
command.Parameters.AddWithValue("@birthWeight", BabyUpdateForm.updateWeight);
command.Parameters.AddWithValue("@birthLength", BabyUpdateForm.updateLength);
command.Parameters.AddWithValue("@birthHeadCir", BabyUpdateForm.updateHeadCir);
command.Parameters.AddWithValue("@babyImagePath", BabyUpdateForm.updateImagePath);
conn.Open();
command.ExecuteNonQuery();
}
}
/* Connects to the database to allow for the user to delete a baby
* entry that they have previously made. Once a baby is deleted
* from the database, all data is lost on the baby and must
* be reentered as a new baby.
*/
public void deletebaby()
{
string connectionString = "Data Source = BabyDatabase.sqlite; Version=3;";
using (SQLiteConnection conn = new SQLiteConnection(connectionString))
using (SQLiteCommand command = conn.CreateCommand())
{
command.CommandText = "DELETE FROM BabyList WHERE FirstName = '" + BabyDeleteForm.comboName + "'";
conn.Open();
command.ExecuteNonQuery();
}
}
}
}
，尽管ChronoField.MINUTE_OF_DAY已经有了获取所需字段的方法：
ChronoField.MINUTE_OF_HOUR要使用英语获取月份名称，还有一种内置方法：
LocalDateTime答案 1 :(得分：1)
从ChronoField Javadoc开始，以下是您需要的字段列表：
MINUTE_OF_HOUR
分钟。
HOUR_OF_DAY
一天一小时。
DAY_OF_MONTH
这个月的日子。
MONTH_OF_YEAR
一年中的月份，例如三月。
YEAR
这个过去的一年，比如2012年。