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String类使用的例子(1)

王朝other·作者佚名  2008-05-31
窄屏简体版  字體: |||超大  

using System;

class myString {

public String str;

public myString (char[] strValue) {

str = new String(strValue);

Console.WriteLine("The string ‘" + str + "‘ has been initialised by passing an array of characters");

}

public myString (char strValue,int intCount) {

str = new String(strValue,intCount);

Console.WriteLine("The string ‘" + str + "‘ has been initialised by a character ‘" + strValue + "‘ which is repeated ‘" + intCount + "‘ times");

}

public myString (char[] strValue,int intStart,int intEnd) {

str = new String(strValue,intStart,intEnd);

Console.WriteLine("The string "+ str + " has been initialised by array of characters starting from ‘"+intStart+"‘ and ending at ‘"+intEnd+"‘");

}

}

public class clsString {

char[] chArray; //={‘c‘,‘h‘,‘a‘,‘r‘,‘a‘,‘c‘,‘t‘,‘e‘,‘r‘,‘ ‘,‘a‘,‘r‘,‘r‘,‘a‘,‘y‘};

int intChoice;

myString objString;

public static void Main() {

clsString obj = new clsString();

obj.init();

}

private void init() {

Console.WriteLine("1. Create the string through character Array");

Console.WriteLine("2. Create the string through a single character which is repeated a number of times");

Console.WriteLine("3. Create the string through character array specifying the starting and ending places");

Console.WriteLine("4. To exit");

Console.Write("Enter Your Choice : " );

string strTemp=Console.ReadLine();

intChoice=int.Parse(strTemp);

try {

switch (intChoice) {

case 1:

mtdCharacterArray();

break;

case 2:

mtdRepetions();

break;

case 3:

mtdChArrayStEnd();

break;

default:

Console.WriteLine("default");

Environment.Exit(0);

break;

}

mtdMethods();

init();

}

catch (Exception e) {

Console.WriteLine("error occured at :" + e.StackTrace);

}

}

private void mtdCharacterArray() {

chArray=mtdGetChArray();

objString = new myString(chArray);

}

private char[] mtdGetChArray() {

char[] chTempArray = new char[Char.MaxValue];

string strTemp;

Console.Write("Enter the character(s) : ");

strTemp=Console.ReadLine();

chTempArray=strTemp.ToCharArray();

return chTempArray;

}

private void mtdRepetions() {

Console.Write("Give the number of Repetions : ");

string strTmp=Console.ReadLine();

int intTemp=int.Parse(strTmp);

chArray=mtdGetChArray();

objString = new myString(chArray[0],intTemp);

}

private void mtdChArrayStEnd() {

string strTmp;

Console.Write("Give the starting position :");

strTmp=Console.ReadLine();

int intStart=int.Parse(strTmp);

Console.Write("Give the ending position : ");

strTmp=Console.ReadLine();

int intEnd=int.Parse(strTmp);

chArray=mtdGetChArray();

objString = new myString(chArray,intStart,intEnd);

}

private void mtdMethods() {

Console.WriteLine("");

Console.WriteLine("1. Concatenate strings ");

Console.WriteLine("2. Copy of a String into an existing one.");

Console.WriteLine("3. Create a new string out of the charecters in the original one");

Console.WriteLine("4. Check if the string ends with a particular set of characters");

Console.WriteLine("5. Formating the string");

Console.WriteLine("6. Hash code of the string");

Console.WriteLine("7. Index of first occurence of any string within another string");

Console.WriteLine("8. Index of first occurence of any character in the given string");

Console.WriteLine("9. Insert a string at a specified place");

Console.WriteLine("10. Join the strings with a seperator");

Console.WriteLine("11. Index of last occurence of any string within another string");

Console.WriteLine("12. Index of last occurence of any character in the given string");

Console.WriteLine("13. Length of the string");

Console.WriteLine("14. Pad required number of spaces or any other character to the left of the string");

 
 
 
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