Write a method to calculate total Weight of a hill pattern in Java?

Given,
the total levels in a hill pattern (input1),
the weight of the head level (input2), and
the weight increments of each subsequent level (input3),
you are expected to find the total weight of the hill pattern.

"Total levels" represents the number of rows in the pattern.
"Head level" represents the first row.
Weight of a level represents the value of each star (asterisk) in that row.

The hill patterns will always be of the below format, starting with 1 star at head level and increasing 1 star at each level till level N.

*
**
***
****
*****
******

. . .and so on till level N

Example1 -
Given,
the total levels in the hill pattern = 5 (i.e. with 5 rows)
the weight of the head level (first row) = 10
the weight increments of each subsequent level = 2
Then, The total weight of the hill pattern will be calculated as = 10 + (12+12) + (14+14+14) + (16+16+16+16) + (18+18+18+18+18) = 10 + 24 + 42 + 64 + 90 = 230

Example2 -
Given,
the total levels in the hill pattern = 4
the weight of the head level = 1
the weight increments of each subsequent level = 5
Then, Total weight of the hill pattern will be = 1 + (6+6) + (11+11+11) + (16+16+16+16) = 1 + 12 + 33 + 64 = 110

1 Answer

Best answer

public int totalHillPatern(int input1, int input2, int input3){
int row=1,num=input2,sum=0,i;
 while(input1-- >0){
 i=0;
  while(i++ < row){
  sum+=num;
  num+=input3;
  row++;
  }
 return sum;
}

answer Dec 10, 2017 by Atindra Kumar Nath

public int totalHillWeight(int input1,int input2,int input3){

int row=1,num=input2,sum=0,i;
    while(input1-- >0){
        i=0;
        while(i++ < row){
            sum+=num;

        }
        num+=input3;
        row++;
}
return sum;
}

commented May 11, 2018 by anonymous

what is the solution for 10+(12+10+12)+(14+12+14+12+14)+(16+14+16+14+16+14+16)+(18+16+18+16+18+16+18+16+18)=370

commented May 18, 2018 by anonymous

Please ask a fresh question, in place of comment?

commented May 18, 2018 by Salil Agrawal

why you have written input-->0?

commented Aug 2, 2020 by anonymous

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Sample Input

Gaurav is  a Good Boy
Sita is a Good Girl
Tommy is  a Good Dog
Ram is a Good person

Sample Output

D:\>Java FileWordCount inputFile.txt outputFile.txt
    Boy : 1
    Dog : 1
    Gaurav : 1
    Girl : 1
    Good : 4
    Ram : 1
    Sita : 1
    Tommy : 1
    a : 4
    is : 4
    person : 1

+2 votes

Write a Java program to find the Sum of last digits of two given numbers?

Rohit wants to add the last digits of two given numbers.
For example, If the given numbers are 267 and 154, the output should be 11.

Below is the explanation -
Last digit of the 267 is 7
Last digit of the 154 is 4
Sum of 7 and 4 = 11

Write a program to help Rohit achieve this for any given two numbers.

Note: The sign of the input numbers should be ignored. i.e.
if the input numbers are 267 and 154, the sum of last two digits should be 11
if the input numbers are 267 and -154, the sum of last two digits should be 11
if the input numbers are -267 and 154, the sum of last two digits should be 11
if the input numbers are -267 and -154, the sum of last two digits should be 11

0 votes

If given an array of ints, how to write a C# method to total all the values that are even numbers?

+2 votes

Write a function in JAVA that takes 2 numbers in string and forms a string containing the addition of these 2 numbers?

Assumption:

The input strings will contain only numeric digits
The input strings can be of any large lengths
The lengths of the two input string need not be the same
The input strings will represent only positive numbers

Example

If input strings are “1234” and “56”, the output string should be “1290”
If input strings are “56” and “1234”, the output string should be “1290”
If input strings are “123456732128989543219” and “987612673489652”, the output string should be “123457719741663032871”