max

问题 I want the user to input a maximum of 8 numbers as it is a field for Mobile number. This is my JTextField. txtMobile = new JTextField(); txtMobile.setColumns(10); txtMobile.setBounds(235, 345, 145, 25); add(txtMobile); While we're at it, how do I check for invalid characters like >> '^%$* in a JTextField ? 1)Maximum Length 2)Accepts only numbers 3)Check for invalid characters 4)Check if it's a valid email address Please help :D 回答1: You could use a JFormattedField , check out How to Use

问题 I need to find the min, max, and average of the balances. I have done this before using for loops, but never with a while loop. Is there a way to pull the min max and average straight from the array without interfering with the while loop perhaps? 10 Helene 1000 Jordan 755 Eve 2500 Ken 80 Andrew 999 David 1743 Amy 12 Sean 98 Patrick 7 Joy 14 where 10 is the number of accounts import java.util.*; import java.io.*; import java.util.Arrays; public class bankaccountmain { public static void main

问题 I have a data frame that looks something like this. import pandas as pd data = [[5, 7, 10], [7, 20, 4,], [8, 1, 6,]] cities = ['Boston', 'Phoenix', 'New York'] df = pd.DataFrame(data, columns=cities, index=cities) Output: Boston Phoenix New York Boston 5 7 10 Phoenix 7 20 4 New York 8 1 6 And I want to be able to find the city pair with the greatest value. In this case I would want to return Phoenix,Phoenix. I have tried: cityMax = df.values.max() cityPairs = df.idxmax() The first one only

问题 How can I check if something in a dictionary is the same as the max in that dictionary. In other words, get all the max values instead of the max value with lowest position. I have this code which returns the max variable name and value: d = {'g_dirt4': g_dirt4, 'g_destiny2': g_destiny2, 'g_southpark': g_southpark, 'g_codww2': g_codww2, 'g_bfront2': g_bfront2, 'g_reddead2': g_reddead2, 'g_fifa18': g_fifa18, 'g_motogp17': g_motogp17, 'g_elderscrolls': g_elderscrolls, 'g_crashbandicoot': g

问题 I have multiple arrays of size 262144, and I am trying to use the following code to set all the values of each array to between 0 and 1, inclusive. To be clear, each array will be normalized differently because each has different values. var i; var max = Number.MIN_VALUE; var min = Number.MAX_VALUE; for (i = 0; i < array.length; i++) { if(array[i]>max) { max = array[i]; } } for (i = 0; i < array.length; i++){ if(array[i]<min) { min = array[i]; } } for (i = 0; i < array.length; i++) { var norm

问题 I'm sure it will be per user - but - is the maximum script runtime in a 24 hour period, for 'Google Apps For Business' 6 hours per user or 6 hours for all users on the account. Thanks EDIT: more detail of my particular situation OK. Still unclear. The web link to Google of quotas doesn't make it clear - it just says 6 hours. So 6 hours each with 8000 users is a massive amount but conversely 6 hours between 8000 users is tiny. My particular situation is a script runs via an installable time

问题 I was wondering: 1.) how do I find a specific string in a column 2.) given that string, how would I find it's corresponding max 3.) How do I count the number of strings for each row in that column I have a csv file called sports.csv import pandas as pd import numpy as np #loading the data into data frame X = pd.read_csv('sports.csv') the two columns of interest are the Totals and Gym column: Total Gym 40 Football|Baseball|Hockey|Running|Basketball|Swimming|Cycling|Volleyball|Tennis|Ballet 37

问题 I have a query that I need to write. Lab assistants will enter the information for students coming to the lab for help. the field are: Visit_ID, Student_ID, Visit_Date, Time_In, Time_Out, Course, Asst_ID. There are 3 sessions for time_in entry Session 1 9-12 Session 2 12-3 Session 3 3-6 The query needs to determine which session on the current day had the most visitors. This is what I have so far: with cte as ( select case when cast(Time_In as time) >'12:00:00' and cast(Time_In as time) <='15

问题 I'm reviewing a python exercise which does the following : reads list of numbers til "done" gets entered. When "done" is inputted, print largest and smallest of the numbers . And it should be without directly using the built-in functions, max() and min(). Here is my source. Traceback says, "'float' object is not iterable" I think my errors are coming from not using the list properly to calculate smallest and largest. Any tips and help will be greatly appreciated! while True: inp = raw_input(

问题 I'm trying to do a couple things here with the script below (it is incomplete). The first thing is to loop through some subdirectories. I was able to do that successfully. The second thing was to open a specific file (it is the same name in each subdirectory) and find the minimum and maximum value in each column EXCEPT the first. Right now I'm stuck on finding the max value in a single column because the files I'm reading have two rows which I want to ignore. Unfortunately, I'm getting the