Circular Shift in Java

class CicularShiftn
{
public static void main(String[] args)
{
int a[]=new int[10];
int temp,n,i,j,b=2;
Console con=System.console();
System.out.println("Enter the 10 elements in array : ");
for(i=0;i<10;i++)
{
int no=(int)(Math.random()*100);
a[i]=no;
}
System.out.println("Array elements are : ");
for(int value:a)
System.out.println(value);
System.out.println("Enter the position from which you want to shift : ");
n=Integer.parseInt(con.readLine());
i=0; j=n;
while(i<j)
{
temp=a[i];
    for(i=0;i<9;i++)
    a[i]=a[i+1];
   a[i]=temp;
   i=0;
   j--;
}
System.out.println("Now array elements are ");
for(int value1:a)
System.out.println(value1);
}
}

Collection in iOS (Objective C)

Use of NSSet

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[]) {

    @autoreleasepool {

        //NSSet Example which uses its own for loop to print seperating by comma.

        NSSet *names=[NSSet setWithObjects:@ "Stefan",@ "Silas",@ "Damon", nil];

        NSLog(@ "%@",names);

        

        //To calculate the number of objects in a set.

        NSLog(@ "The set has %lu elements",names.count);

        

        //Fast Enumeration

        for(id name in names){

            NSLog(@ "%@",name);

        }

        

        //enumerate objects using Block

        [names enumerateObjectsUsingBlock:^(id obj, BOOL *stop){

            NSLog(@ "Current item: %@",obj);

            if ([obj isEqualToString:@ "Damon"]) {

                NSLog(@ "I was looking for Damon and I found him!");

                *stop=YES; //stop enumerating item

            }

        }];

    }

    return 0;

}

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Use of NSNumber in iOS (Objective C)

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[]) {

    @autoreleasepool {

        NSNumber *aBool=[NSNumber numberWithBool:NO];

        NSNumber *aChar=[NSNumber numberWithChar:'z'];

        NSNumber *anInt=[NSNumber numberWithInt:234545];

        NSNumber *aDouble=[NSNumber numberWithDouble:34.345];

        

        NSLog(@ "%@",[aBool boolValue]?@ "YES":@ "NO");

        NSLog(@ "%c",[aChar charValue]);

        NSLog(@ "%lu",[anInt integerValue]);

        NSLog(@ "%f",[aDouble doubleValue]);

        

        //Assigning direct literals is valid.

        aBool=@ YES;

        NSLog(@ "%@",[aBool boolValue]?@ "YES":@ "NO");

        

        //NSNumber could be used directly with any data type.

        float x=5;

        NSNumber *result=@(x*10);

        NSLog(@ "%@",result);

        

        //could also be used in counter to store value at runtime.

        NSNumber *counter=@ 0;

        for (int i=0; i<10; i++) {

            counter=@ ([counter integerValue]+1);

        }

        NSLog(@ "%@",counter);

        

        //Use of NSNumber with NSComparisonResult

        NSNumber *anInteger=@ 65;

        NSNumber *anotherInt=@ 42;

        NSComparisonResult result1 = [anInteger compare:anotherInt];

        if (result1 == NSOrderedAscending) { //It will return 1 if true.

            NSLog(@ "65<42");

        }

        else if (result1 == NSOrderedSame){ //It will return 0 if true.

            NSLog(@ "65==42");

        }

        else if (result1 == NSOrderedDescending){ //It will return -1 if true.

            NSLog(@ "65>42");

        }

    }

    return 0;

}

String properties in iOS (Objective C)

• Length
• UTF8String
• Capitalised a String
• Uppercase 
• Lowercase
• Double Value
• Float Value
• Integer Value
• Bool Value

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[]) {

    @autoreleasepool {

        NSString *str=[[NSString alloc]init];

        str=@ "Akshay sarda";

        NSLog(@ "%@",str);

        

        char *arr="Akshay";

        NSString *temp=[[NSString alloc]initWithCString:arr encoding:NSUTF8StringEncoding];

        NSString *a=[[NSString alloc]initWithUTF8String:arr];

        NSLog(@ "%@ %@",a,temp);

        

        int count;

        NSString *arr1=[[NSString alloc]initWithFormat:@ "Count is %d",count];

        NSLog(@ "%@",arr1);

        

        //String Length

        NSLog(@ "Length is %lu",str.length);

        NSLog(@ "Length is %lu",a.length);

        

        //UTF8String

        NSLog(@ "String is %s",temp.UTF8String);

        

        //Capitalized a String

        NSLog(@ "%@",str.capitalizedString); //It will Capitalized the First letter of each word.

        

        //Lower case String

        NSLog(@ "%@",a.lowercaseString);

        

        //Upper case String

        NSLog(@ "%@",str.uppercaseString); //It will convert the complete string in Capital Letter.

        

        //Double Value

        NSString *pi=@ "3.14";

        NSLog(@ "%f",pi.doubleValue);

        

        //Float Value

        NSLog(@ "%f",pi.floatValue);

        

        //Integer Value

        NSLog(@ "%lu",pi.integerValue);

        

        //BOOL Value

        BOOL k=YES;

        NSLog(@ "%d",k);

    }

    return 0;

}

String Methods in iOS

• Appending a String
• String Padding
• Range of String 
• Substring with Range
• Components Separated by String
• Components Separated by Character in set
• Components joined by String
• String separated by comma (,)  added in array
• Substring from String
• Substring to Index
• String by replacing occurrences of String
• Case sensitive Comparison

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[]) {

    @autoreleasepool {

        

        //Appending a String

        NSString *errortag=@ "Error: ";

        NSString *errorstring=@ "premature end of file";

        NSString *errormessage=[errortag stringByAppendingString:errorstring];

        NSLog(@ "%@",errormessage);

        

        //String Padding

        NSString *temp=@ "Akshay";

        temp= [temp stringByPaddingToLength:8 withString:@ "." startingAtIndex:0];

        NSLog(@ "%@",temp);

        //Error on setting the index to 1 when there is no space in the withString.

        

        temp=@ "Akshay";

        temp=[temp stringByPaddingToLength:10 withString:@ ". " startingAtIndex:1];

        NSLog(@ "%@",temp);

        

        //rangeOfString

        NSString *new=@ "Stefan";

        NSRange range=[new rangeOfString:@ "John"];

        NSLog(@ "Location : %lu Length: %lu",range.location,range.length);

        //Range starting from 0, doesn't make sense.

        

        //substringWithRange

        NSString *str=@ "DamonSalvetore";

        NSRange range1={0,6};

        NSString *str1=[str substringWithRange:range1];

        NSLog(@ "Substring with Range is %@",str1);

        NSString *str2=[str substringWithRange:NSMakeRange(5, 6)];

        NSLog(@ "Range is %@",str2.capitalizedString);

        

        //Components Seperate by String

        NSString *list=@ "Damon, Alina, Kathrine";

        NSArray *listitem= [list componentsSeparatedByString:@ ","];

        for (int i=0; i<listitem.count; i++) {

            NSLog(@ "%@",[listitem objectAtIndex:i]);

        }

        

        //Components seperated by character in set

        NSString *st=@ "A~B~C~D~E";

        NSArray *starr=[st componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@ "~"]];

        NSLog(@ "%@",starr);

        NSString *st1=@ "A~B^C~D^E";

        NSArray *starr1=[st1 componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@ "^~"]];

        NSLog(@ "%@",starr1);

        

        //Components Joined by String

        NSArray *pathArray=[NSArray arrayWithObjects:@ "here",@ "dragons", @ "are", @ "stupid", nil];

        NSLog(@ "%@",[pathArray componentsJoinedByString:@ " "]);

        

        //String seperated by comma(,) added in array, and showed as desired output.

        NSString *gon=@ "Dragons,are,smart";

        NSArray *path=[gon componentsSeparatedByString:@ ","];

        NSLog(@ "%@",[path componentsJoinedByString:@ " "]);

        

        //substring from Index

        NSString *sub=@ "Elina";

        NSLog(@ "%@",[sub substringFromIndex:3]);

        

        //substring to Index

        NSLog(@ "%@",[sub substringToIndex:3]);

        NSString *output=[sub substringToIndex:3];

        NSLog(@ "%@",[output stringByPaddingToLength:6 withString:@ "." startingAtIndex:0]);

        

        //string by replacing occurences of string

        NSLog(@ "%@",[sub stringByReplacingOccurrencesOfString:@ "hay" withString:@ "Emi"]);

        

        //case insensitive Comparision

        NSLog(@ "Case Insensitive : %lu",[sub caseInsensitiveCompare:@ "aaksha"]);

        NSLog(@ "Case Sensitive %lu",[sub compare:@ "Akshay"]);

        

        //is equal to String (Returns BOOL i.e. 1 or 0 | YES or NO)

        NSLog(@ "Comparision returns Bool value : %d",[sub isEqualToString:@ "Akshay"]);

        

        //BOOL

        NSLog(@ "Prefix : %d",[sub hasPrefix:@ "Caroline"]);

        NSLog(@ "Suffix : %d",[sub hasSuffix:@ "caroline"]);

    }

    return 0;

}

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Program for ArrayList in C#

ArrayList

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Collections;

namespace ArrayList0

{

    class Program

    {

        static void Main(string[] args)

        {

            ArrayList aList = new ArrayList();

            aList.Add(45);

            aList.Add(60);

            aList.Add(78);

            aList.Add(75);

            aList.Add(12);

            aList.Add(34);

            aList.Add(89);

            aList.Add(90);

            aList.Add(67);

            aList.Add(60);

            int n = aList.Count;

            Console.WriteLine();

            Console.WriteLine("TotaList number of element in an array {0}  ",n);

            Console.WriteLine();

       foreach (int b in aList)

            {

                Console.WriteLine(b);

               }

            aList.Sort();

            aList.Reverse();

            Console.WriteLine("Sorted in Descending order : ");

            foreach (int a in aList)

            {

                Console.WriteLine(a);

            }

            Console.WriteLine();

            aList.RemoveAt(9);

            Console.WriteLine("Lowest marks removed : ");

            foreach (int b in aList)

            {

                Console.WriteLine(b);

            }

            Console.WriteLine();

            Console.WriteLine(aList.Contains(75));

            

            aList.Clear();

            Console.WriteLine("Removed aListl the List of Array");

            Console.ReadKey();

        }

    }

}

String Operation in C#

String Operations :
1. Get the Substring from a string
2. Reverse a string
3. Concatenate a string
4. Check whether a string contains a particular string or not
5. Compare two strings

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace StringOperation
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("String Operations");
            Console.WriteLine();
            Console.WriteLine("1. Get the substring from a string.");
            string s1 = "Dream big and dare to fail, ";
            string s2 = "Never give up on your Dream.";          
            string get = s1.Substring(0,6);
            Console.WriteLine("String is : {0}", s1);
            Console.WriteLine("Substring of this String is : {0}",get);
            Console.WriteLine(); Console.WriteLine();
           
            Console.WriteLine("2. Reverse a String.");
            string str = "Damon Salvatore";
            Console.WriteLine("Original String is : {0}",str);
            char[] cArray = str.ToCharArray();
            string reverse = String.Empty;
            for (int i = cArray.Length - 1; i > -1; i--)
            {
                reverse += cArray[i];
            }
            Console.WriteLine("After reverse the String is : {0}",reverse);
            Console.WriteLine(); Console.WriteLine();

            Console.WriteLine("3. Concatinate a String");
            string concat = s1 + s2;
            Console.WriteLine("After Concatination the string is : ");
            Console.WriteLine(">>> {0}",concat);
            Console.WriteLine(); Console.WriteLine();

            Console.WriteLine("4. Check whether a string contain a particular string.");
            if (s1.Contains("Dream"))
                Console.WriteLine("Dream does contain in string.");
            else
                Console.WriteLine("It doesnot contain.");
            Console.WriteLine(); Console.WriteLine();

            Console.WriteLine("5. Compare two string.");
            s1 = "Ramandeep";
            s2 = "Ramandeep";
            if(s1==s2)
                Console.WriteLine("Is equal");
            else
                Console.WriteLine("Is not equal");
            Console.ReadKey();
        }
    }
}

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