commit

src/AssessmentPartThree.java

@@ -10,23 +10,207 @@ public class AssessmentPartThree {
 	
 	 public char enryptedCharacter(char theChar, int theOffset)
 	 {
-		 // 05 - encryptedCharacter
-		 // Complete this method so that it returns the encrypted character for
-		 // theChar when and offset of theOffset is used
-		 // So if theChar='m' and theOffset is 3 the method will return 'p'
-		 // Lower case characters remain lower case, upper case remain upper case
-		 // Any other characters are returned unchanged
+			char a=theChar;  // store given character
+			int b=a;          // Stores ASCCI of given character
+			int Add=0;      // Add is use to check  Offset and  ASCII of given number
 		
-		 return 'a';
+			if(a>='a' && a<='z')   // This condition executes when given charcter is a small Alphabet
+			
+			{     	
+				if(theOffset>=0)          //  This condition will be executed when the given offset is positive 
+				 {
+					Add=b+theOffset;        // Add Offset and  ASCII of given number 
+					
+					if(Add>122)            
+					{
+						
+				         Add-=122;         // Add = Add-122
+				         Add+=96;          //then add 96 in it.
+				         a=(char)Add;      //and change ASCII into character
+					 
+					}
+					else
+					{
+					    b+=theOffset;     
+					    a=(char)b; 
+					}
+				 }
+				else if(theOffset<0) // This condition will be executed when the given offset is Negative      
+				{
+					Add=b+theOffset;
+					
+					if(Add<97)
+					 {
+				            Add-=96;
+				            Add+=122;
+					    a=(char)Add;
+					 }
+					else
+					 {
+					    b+=theOffset;
+					    a=(char)b;
+					 }
+				}
+			 
+		    }       // IF #1 End
+			
+			else if(a>='A' && a<='Z')  // This condition executes when given charcter is a Capital Alphabet  
+			  {
+				      	
+					if(theOffset>=0)     //  This condition will be executed when the given offset is positive
+					 {
+						Add=b+theOffset;
+						
+						if(Add>90)
+						{
+					          Add-=90;
+					          Add+=64;
+					          a=(char)Add;
+						}
+						else
+						{
+						    b+=theOffset;
+						    a=(char)b;
+						}
+					}
+					
+					else if(theOffset<0)  // This condition will be executed when the given offset is Negative
+					{
+						Add=b+theOffset;
+						
+						if(Add<65)
+						{
+					          Add-=64;
+					          Add+=90;
+					          a=(char)Add;
+						}
+						else
+						{
+					            b+=theOffset;
+						    a=(char)b;
+						}
+					}
+			   
+			   }   // ELSE #1 END
+			return a;
 	 }
 	 
 	 public String encryptedString(String theMessage, int theOffset)
+	 
+		 {
+				
+				String eMessage="";   // Stores Encryptred message
+				int b;     // Stores ASCII of single Character
+				char a;    // Stores single character of String  
+				String s=theMessage;    
+				int Add=0;    
+				
+			
+				
+				for(int i=0;i<s.length();i++) // s.length() counts total charaters in a String and then For loop executes s.length() times 
 				{
-		 // 06 - encryptedMessage
-		 // Complete this method so that it uses encryptedCharacter to 
-		 // return the encrypted version of theMessage using theOffset
 					
-		 return "Encryptred message";
+			    	a=s.charAt( i );  // get specific character from String
+			    	b=a;
+				if(a>='a' && a<='z')  // This condition executes when  given charcter is a small Alphabet
+				
+				{     	
+					if(theOffset>=0)   //  This condition will be executed when the given offset is positive 
+					 {
+						Add=b+theOffset;  // Add Offset and  ASCII of given number 
+						
+						if(Add>122)
+						{	
+					         Add-=122;
+					         Add+=96;
+						 a=(char)Add;
+						 eMessage +=a;  // Add new character in a String
+						}
+						else
+						{
+						    b+=theOffset;
+						    a=(char)b;
+						    eMessage +=a;
+						}
+					 }
+					else if(theOffset<0)  // This condition will be executed when the given offset is Negative      
+					{
+						Add=b+theOffset;
+						
+						if(Add<97)
+						 {
+					       Add-=96;
+					       Add+=122;
+						   a=(char)Add;
+						   eMessage +=a;
+						 }
+						else
+						 {
+							b+=theOffset;
+						    a=(char)b;
+						    eMessage +=a;
+						 }
+					}
+				 
+			    }       // IF #1 End
+				
+				else if(a>='A' && a<='Z')         // ELSE #1 Start
+				  {
+					      	
+						if(theOffset>=0)  // This condition will be executed when the given offset is Positive      
+						 {
+							Add=b+theOffset;
+							
+							if(Add>90)
+							{
+						      Add-=90;
+						      Add+=64;   // by this we can get correct ascii for our character
+							  a=(char)Add; // this will change ascii into character.
+							  eMessage +=a; // and store inn eMessage. 
+							}
+							else
+							{
+								b+=theOffset;
+							    a=(char)b;
+							    eMessage +=a;
+							}
+						}
+						
+						else if(theOffset<0)   // This condition will be executed when the given offset is Negative      
+						{
+							Add=b+theOffset;
+							if(Add<65)
+							{
+						       Add-=64;
+						       Add+=90;
+						      a=(char)Add;
+						       eMessage +=a;
+							}
+							else 
+							 {
+							
+								b+=theOffset;
+								 
+							    a=(char)b;
+							   
+							    eMessage +=a;
+							 }
 						}
 				   
+				   }   // ELSE #1 END
+
+				else if(b==32)    // Use to check Space
+			       {
+				     a=(char)32;
+			       	     eMessage +=a;
+			       }
+		                else               // when charcter is not an Alphabet
+		                  {
+		                    eMessage +=a;    
+		                  }
+				    
+			} // End For Loop
+				 
+				 return eMessage;    
+		 }
 }
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