Write a program that reads the data from rawdata_2004.txt into a dictionary whose keys are country names and whose values are pe
1 answer:
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Answer:
Here is the JAVA program:
import java.util.Scanner; // for taking input from user
//class to count number of times a character appears in the string
public class CharacterCounter
//method which returns number of times a character appear in string
{ public static int CountCharacter(String userString, char character)
{
int counter = 0; //stores the no of times character appears in string
for (int i=0; i<userString.length(); i++) //loop moves through entire string
{ // if character matches the character in the string
if (userString.charAt(i) == character)
counter++; // adds one to the character counter variable
}
return counter; } // returns no of time character is found in string
public static void main(String[] args) {
Scanner scanner = new Scanner(System. in);//takes input from user
String string;
char character;
System.out.println("Enter a string"); //prompts user to enter a string
string = scanner.nextLine(); //scans the input string
System.out.println("Enter a character");
// prompts user to enter character
character = scanner.next().charAt(0); //scans and reads the character
System.out.println("number of times character "+character + " appears in the string " + string +": " + CountCharacter(string, character)); } }
// calls CountCharacter method to output no of times a character appears in the input string
Explanation:
The method CountCharacter() has a loop in which the variable i works as an index which moves through each character of the string and if the character of the string in i matches the character which is to be found in the string then the value of counter variable increments by 1. This means that counter variable keeps counting the number of time the character appears in the string. The loop breaks when value of i exceeds the length of the string which means that the i reaches the end of the string and has searched the entire string for the specified character. In the end the count variable returns the number of time character appeared in the string. The main() function takes as input from the user, a string and a character to be searched for in the string. It then calls CountCharacter() function to find the number of times that input character appears in the input string and displays it on the output screen.
The program along with its output is attached as a screenshot.
Answer:
Following are the code to this question:
#include<stdio.h>//defining header file
int AND(int x,int y) //defining a method AND that hold two variable in its parameter
{
if(x==1 && y==1)//defining if block to check x and y value is equal to 1
{
return 1;//return value 1
}
else //defining else block
{
return 0;//return value 0
}
}
int OR(int x,int y)//defining method OR that hold two variable in its parameter
{
if(x==0&&y==0)//defining if block to check x and y value is equal to 1
{
return 0;//return value 0
}
else //defining else block
{
return 1;//return value 1
}
}
int main()//defining main method
{
int a,b,c;//defining integer variable
int k=1;//defining integer variable k that holds a value 1
while(k<=8)//defining while loop for 8 time input
{
printf("Please insert 3 numbers in (0 0r 1):\n ");//print message
scanf("%d%d%d", &a, &b, &c);//input value
k++;//increment the value of k by 1
printf("value: %d\n",AND(OR(a,b),c));
}
return 0;
}
Output:
please find the attachment.
Explanation:
In the above-given C language code two methods "AND and OR" is declared, holds two integer variable "x and y" in its parameters, inside the method a conditional it used that can be defined as follows:
- In the AND method, inside a conditional statement, if block check x and y both value is same that is 1 it will return 1 or it will goto else block in this it will return value 0.
- In the OR method, inside a conditional statement, if block check x and y both value is the same, that is 0 it will return 0 or it will goto else block in this it will return value 1.
- In the main method, four integers "a,b,c, and k" is declared in which variable "a, b, c" is used in the loop for 8 times input values from the user and print method is used to call the method and prints its return values.
