For Details of The Program: CLICK HERE
 
 
class Q1
{
int n,m, no,
digit, i;
BufferedReader
br=new BufferedReader(new InputStreamReader(System.in));
Q1()
{
digit=0;
}
void accept( )
throws Exception
{
System.out.print("\nEnter 'M':");
m=Integer.parseInt(br.readLine());
System.out.print("\nEnter
'N':");
n=Integer.parseInt(br.readLine());
check();
}
void check( )
{
if(n >100
||m<100 m="">10000)100>
System.out.println("Invalid
Input.");
else
{
while(true)
{
no=0;
for(i=m;i
>0;i=i/10)
no=no+i%10;
if(no==n)
{
System.out.println("\nThe
required number:"+m);
System.out.println("\nTotal
number of digits:"+digit(m));
break;
}
m++;
}
}
}
int digit(int
x)
{
int c=0;
for(int j=x;j
>0;j=j/10)
c++;
return c;
}
public static
void main(String args[]) throws Exception
{
Q1 one=new
Q1();
one.accept();
}
}
Variable
description
Type 
 | 
  
Variable Name 
 | 
  
Purpose 
 | 
  
Scope 
 | 
 ||||||
int 
 | 
  
n 
 | 
  
To store the lower range 
 | 
  
Entire program 
 | 
 ||||||
m 
 | 
  
To store the upper 
 | 
  
Entire program 
 | 
 |||||||
range 
 | 
  |||||||||
int 
 | 
  
no 
 | 
  
To store the 
 | 
  
Entire program 
 | 
 ||||||
nearest
  required 
 | 
  |||||||||
number 
 | 
  |||||||||
Int 
 | 
  
digit 
 | 
  
Count the digit 
 | 
  
Entire program 
 | 
 ||||||
int 
 | 
  
i 
 | 
  
Loop control 
 | 
  
Entire program 
 | 
 ||||||
variable 
 | 
  |||||||||
int 
 | 
  
x 
 | 
  
To hold the value 
 | 
  
digit function 
 | 
 ||||||
of m 
 | 
  |||||||||
Int 
 | 
  
c 
 | 
  
counter 
 | 
  
digit function 
 | 
 ||||||
BufferedReader 
 | 
  
br 
 | 
  
Input object 
 | 
  
Entire program 
 | 
 ||||||
int 
 | 
  
j 
 | 
  
Loop control 
 | 
  
check function 
 | 
 ||||||
variable 
 | 
  |||||||||
Algorithm 
 | 
  |||||||||
Step 1: Create
int variables n,m,digit,no,i
Step 2: Take
lower range and upper range values and store in n and m
Step 3: Check
whether n and m are within specified range
Step 4: Repeat
steps 5 and 6 until the required number is reached
Step 5: Take the sum of the digits of ‘m’ and
check it with ‘n’. If match found count the number of digits in it, display
both and go to step 7 
Step 6: Increase ‘m’ by 1 
Step 7: End
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