using System;
using System.Globalization;
using System.Text;
public class NumParsingApp {
public static void Main(string[] args) {
string u = "AA -1,234,567.890 ";
NumberFormatInfo ni = new NumberFormatInfo();
ni.CurrencySymbol = "AA";
double h = Double.Parse(u, NumberStyles.Any, ni);
Console.WriteLine("h = {0:F}", h);
}
}
Software Development
software development notes, main category for Cs, Java, and other programming experiences.
{0,4} {1,4} {2,4} {3,4} {4,4}
using System;
public class MainClass {
public static void Main() {
Random rnd = new Random();
int[,] m = new int[3, 5];
for (int i = 0; i < m.GetLength(0); i++)
for (int j = 0; j < m.GetLength(1); j++)
m[i, j] = rnd.Next(1000);
for (int i = 0; i < m.GetLength(0); i++)
Console.WriteLine("{0,4} {1,4} {2,4} {3,4} {4,4}", m[i, 0], m[i, 1], m[i, 2], m[i, 3], m[i, 4]);
}
}
[/csharp]
|{0,10:X}|{1,10}|{2:X}|{3}|
public class MainClass {
public static void Main() {
int i = 250662;
string s = string.Format("|{0,10:X}|{1,10}|{2:X}|{3}|", i, i, i, i);
}
}
left justify and align a set of strings to improve the appearance of program output
using System;
class Class1 {
public static void Main(string[] args) {
string[] names = {“CA “,” SA”,”J A”,”SA”,” SA “};
foreach (string s in names) {
Console.WriteLine(“This is the name '{0}' before”, s);
}
string[] sAlignedNames = TrimAndPad(names);
foreach (string s in sAlignedNames) {
Console.WriteLine(“This is the name '{0}' afterwards”, s);
}
}
public static string[] TrimAndPad(string[] strings) {
string[] stringsToAlign = new String[strings.Length];
for (int i = 0; i < stringsToAlign.Length; i++) {
stringsToAlign[i] = strings[i].Trim();
}
int nMaxLength = 0;
foreach (string s in stringsToAlign) {
if (s.Length > nMaxLength) {
nMaxLength = s.Length;
}
}
for (int i = 0; i < stringsToAlign.Length; i++) {
stringsToAlign[i] =
stringsToAlign[i].PadRight(nMaxLength + 1);
}
return stringsToAlign;
}
}
[/csharp]
Control the width
using System;
public class TestConsoleApp {
public static void Main(string[] args) {
Console.WriteLine("
{0,-10}{1,-3}", "Name", "Salary");
Console.WriteLine("{0,-10}{1,6}", "Bill", 123456);
Console.WriteLine("{0,-10}{1,6}", "Polly", 7890);
}
}
The comma (,M) determines the field width and justification.
using System;
public class TestConsoleApp
{
public static void Main(string[] args)
{
Console.WriteLine(
"{0,5} {1,5}", 123, 456); // Right-aligned
Console.WriteLine(
"{0,-5} {1,-5}", 123, 456); // Left-aligned
Console.WriteLine(
"{0,-10:D6} {1,-10:D6}", 123, 456);
}
}
Use string.Format to format integer
using System;
public class TestConsoleApp {
public static void Main(string[] args) {
string s = string.Format("123");
string t = string.Format("{0}", 123);
string u = string.Format("{0:D3}", 123);
Console.WriteLine(s);
Console.WriteLine(t);
Console.WriteLine(u);
}
}