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===============================================================================================================================================

 Q.1-
============
  Input: 9876565
 Expected Output is: 1
Hint:9+8+7+6+5+6+5=10 =1
 Input is Possitive Number Only.

Coading Part:

      //Q.1
import java.util.Scanner;

class ClassA {  

public static void main(String[] args) 

{

Scanner sc=new Scanner(System.in);

int n=sc.nextInt();

int sum=0,rem=0;

while(true){

sum=0;       

   while(n!=0){       

     rem=n%10;

sum=sum+rem;

n/=10;  

 }  

 if(sum<10){          

   System.out.println(sum); break;

  }

  n=sum;

}

}

}

======================================================================

Q.2-

===========

Input :"for{do{print}}"

Output: balanced

Input:"while{do}a=5}" 

Output:Unbalanced

Coading Part:

//Q.2

import java.util.*;

class ClassB 

{

public static void main(String[] args) 

{

Scanner sc=new Scanner(System.in);

String s=sc.next();

int count=0;

for(int i=0;i<s.length();i++){

          if(s.charAt(i)=='{' || s.charAt(i)=='}'){

           count++;

  }

}

if(count%2==0)

  

System.out.println("Balanced");

else

System.out.println("UnBalanced");

}

}

======================================================================

Q.3-

============

 Input:"Hello","world","it",1,2,3

output:("hello",1),("world",2),("it",9)

input:"x","y","z",3,5,7

output:("x",9),("y",25),("z",49)

Hint: Square of the last three in the input list

Coading Part:

  //Q.3

import java.util.*;

class  ClassD 

{

public static void main(String[] args) 

{

Scanner sc=new Scanner(System.in);

String s=sc.next();

String s1[]=s.split(",");

int a=s1.length/2;

for(int i=0;i<s1.length/2;i++){

int n=Integer.parseInt(s1[a]);

          System.out.print("("+s1[i]+","+n*n+")");

  a++;

  if(i<s1.length-1)){

            System.out.print(",");

  }

  

}

//System.out.println(Arrays.toString(s1));

}

}

========================================================================

Q.4-

=============

 Input:"/foo/bar"

Output:directry bar resides under foo  resides under.

input:"/blah/bar/name.txt"

Output: file name.txt resides under bar resides under blah resides under

input:/test

output:directory test resides under root

Hint: file has a three character extension.

Coading Part:

//Q.4
import java.util.*;
class ClassE 
{
public static void main(String[] args) 
{
Scanner sc=new Scanner(System.in);
String s=sc.next();
String s1[]=s.split("/");
        if(s1.length==2){
System.out.print("Directry ");
           for(int i=s1.length-1;i>0;i--){
            System.out.print(" "+s1[i]+" Reside Under Root");
}
}
else if(s1.length==4){
System.out.print("File");
          for(int i=s1.length-1;i>0;i--){
            System.out.print(" "+s1[i]+" Reside Under ");
}
}
else{
           System.out.print("Directory");
           for(int i=s1.length-1;i>0;i--){
            System.out.print(" "+s1[i]+" Reside Under ");
}
}
System.out.println();
}

}

======================================================================

Q.5-

=============

Plaintext:a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z

Chipertext:B,C,D,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,X,A

INput:"hello"

Output:IFMMP

input:LMNOP

output:klmno

Coading Part:

//Q.5

import java.util.*;

import java.io.*;

class ClassC 

{

public static void main(String[] args) 

{

Scanner sc=new Scanner(System.in);

char arr1[]=new char[26];

char arr2[]=new char[26];

int a=97;

for(int i=0;i<arr1.length;i++){

          arr1[i]=(char)a++;

}

//second Arrays

int b=66;

for(int i=0;i<arr1.length-1;i++){

          arr2[i]=(char)b++;

}

arr2[25]='A';

       String s=sc.next();

  /* if(s.isLowerCase()){

System.out.println(s);   

   }*/

   String s1="";

   //check given string is lower cse or uppercase

        char ch=s.charAt(0);

        if(Character.isLowerCase(ch)){

   

   for(int j=0;j<s.length();j++){

         for(int i=0;i<arr1.length;i++){

                if(s.charAt(j)==arr1[i]){

                   s1=s1+arr2[i];   

        }

   

         }

       }

    }

  else{

        

  for(int j=0;j<s.length();j++){

         for(int i=0;i<arr2.length;i++){

                if(s.charAt(j)==arr2[i]){

                   s1=s1+arr1[i];   

        }

   

         }

       }

  }

System.out.println(s1);

}

}

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