Write a Python function called readlinesmton that accepts the name of the file (i.e. filename), starting line number (i.e. m) an
1 answer:
Answer:
Following are the code to the given question:
def readlinesmton(filename, m ,n):#defining a method that holds three parameters
f=open(filename, 'r')#defining f variable that holds open method
l=f.readlines()#defining a variable l that readers input file
e=len(l)#defining e variable lengths of the file
s=m#defining s variable that holds parameter value
if(m<1):#Using if block that checks m is less than 1
s=1#use s variable that holds a value that is 1
if(n < e):#defining n variable that checks n less than e
e=n #using e that holds n value
for i in range(s-1, e, 1):#defining for loop that calculates lines
print(l[i])#prints lines
readlinesmton("input.txt", -1, 70)#Calling a method
Output:
Please find the ouput in the attached file.
Explanation:
In this code, a method "readlinesmton" is declared that takes three-parameter and inside the method, it uses the open method to open the file, read method to read the file, and len to calculate the length of the file and use the conditional statement to check the file inputs and use the loop to prints its values.
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<h2>Answer:</h2><h2></h2>
//import the Random and Scanner classes
import java.util.Random;
import java.util.Scanner;
//Begin class definition
public class ChangeUp {
//Begin the main method
public static void main(String args[]) {
//Initialize the empty array of 6 elements
int [] numbers = new int [6];
//Call to the populateArray method
populateArray(numbers);
} //End of main method
//Method to populate the array and print out the populated array
//Parameter arr is the array to be populated
public static void populateArray(int [] arr){
//Create object of the Random class to generate the random index
Random rand = new Random();
//Create object of the Scanner class to read user's inputs
Scanner input = new Scanner(System.in);
//Initialize a counter variable to control the while loop
int i = 0;
//Begin the while loop. This loop runs as many times as the number of elements in the array - 6 in this case.
while(i < arr.length){
//generate random number using the Random object (rand) created above, and store in an int variable (randomNumber)
int randomNumber = rand.nextInt(6);
//(Optional) Print out a line for formatting purposes
System.out.println();
//prompt user to enter a value
System.out.println("Enter a value " + (i + 1));
//Receive the user input using the Scanner object(input) created earlier.
//Store input in an int variable (inputNumber)
int inputNumber = input.nextInt();
//Store the value entered by the user in the array at the index specified by the random number
arr[randomNumber] = inputNumber;
//increment the counter by 1
i++;
}
//(Optional) Print out a line for formatting purposes
System.out.println();
//(Optional) Print out a description text
System.out.println("The populated array is : ");
//Print out the array content using enhanced for loop
//separating each element by a space
for(int x: arr){
System.out.print(x + " ");
}
} //End of populateArray method
} //End of class definition
<h2>Explanation:</h2>
The code above is written in Java. It contains comments explaining the lines of the code.
This source code together with a sample output has been attached to this response.
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java
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