Program to find all prime numbers in given range

Description

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To find all prime numbers in a given range, take a loop and check if number
is prime or not. If it is prime print it else skip it.
To find all prime numbers in a given range, take a loop and check if number is prime or not. If it is prime print it else skip it.
To find all prime numbers in a given range, take a loop and check if number
is prime or not. If it is prime print it else skip it.

C/C++

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/* C Program to find all prime numbers in given range */
//Save it as PrimeNumbersInGivenRange.c
#include<stdio.h>
#include<stdbool.h>
bool checkPrime(int);
int main(){
int i, range;
printf("Enter a range : ");
scanf("%d",&range);
printf("The all prime numbers are : ");
for(i=2;i<=range;i++) {
if(checkPrime(i)) {
printf("\n%d",i);
}
}
}
//Function to check prime number
bool checkPrime(int num) {
int k, flag = 0;
for(k=2;k<=num/2;k++) {
if(num%k == 0 ) {
flag = 1;
break;
}
}
if(flag == 1)
return false;
else
return true;
}
/* C Program to find all prime numbers in given range */ //Save it as PrimeNumbersInGivenRange.c #include<stdio.h> #include<stdbool.h> bool checkPrime(int); int main(){ int i, range; printf("Enter a range : "); scanf("%d",&range); printf("The all prime numbers are : "); for(i=2;i<=range;i++) { if(checkPrime(i)) { printf("\n%d",i); } } } //Function to check prime number bool checkPrime(int num) { int k, flag = 0; for(k=2;k<=num/2;k++) { if(num%k == 0 ) { flag = 1; break; } } if(flag == 1) return false; else return true; }
/* C Program to find all prime numbers in given range */
//Save it as PrimeNumbersInGivenRange.c

#include<stdio.h>
#include<stdbool.h>
bool checkPrime(int);

int main(){

    int i, range;

    printf("Enter a range : ");
    scanf("%d",&range);

    printf("The all prime numbers are : ");
    for(i=2;i<=range;i++) {
        if(checkPrime(i)) {
            printf("\n%d",i);
        }
    }
}

//Function to check prime number
bool checkPrime(int num) {

    int k, flag = 0;
    for(k=2;k<=num/2;k++) {
        if(num%k == 0 ) {
            flag = 1;
            break;
        }
    }

    if(flag == 1)
        return false;
    else
        return true;
}
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Input:
Enter a range : 10
Output:
The all prime numbers are :
2
3
5
7
Input: Enter a range : 10 Output: The all prime numbers are : 2 3 5 7
Input:
Enter a range : 10

Output:
The all prime numbers are : 
2
3
5
7

Java

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/* Java Program to find all prime numbers in given range */
//Save it as PrimeNumbersInGivenRange.java
import java.io.*;
import java.util.Scanner;
public class PrimeNumbersInGivenRange {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("Enter a range : ");
int range = scanner.nextInt();
System.out.println("The all prime numbers are : ");
for(int i=2;i<=range;i++) {
if(checkPrime(i)) {
System.out.println(i);
}
}
}
//Function to check prime number
private static boolean checkPrime(int num) {
int flag = 0;
for(int k=2;k<=num/2;k++) {
if(num%k == 0 ) {
flag = 1;
break;
}
}
if(flag == 1)
return false;
else
return true;
}
}
/* Java Program to find all prime numbers in given range */ //Save it as PrimeNumbersInGivenRange.java import java.io.*; import java.util.Scanner; public class PrimeNumbersInGivenRange { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); System.out.println("Enter a range : "); int range = scanner.nextInt(); System.out.println("The all prime numbers are : "); for(int i=2;i<=range;i++) { if(checkPrime(i)) { System.out.println(i); } } } //Function to check prime number private static boolean checkPrime(int num) { int flag = 0; for(int k=2;k<=num/2;k++) { if(num%k == 0 ) { flag = 1; break; } } if(flag == 1) return false; else return true; } }
/* Java Program to find all prime numbers in given range */
//Save it as PrimeNumbersInGivenRange.java

import java.io.*;
import java.util.Scanner;

public class PrimeNumbersInGivenRange {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);
        
        System.out.println("Enter a range : ");
        int range = scanner.nextInt();
        
        System.out.println("The all prime numbers are : ");
        for(int i=2;i<=range;i++) {
            if(checkPrime(i)) {
                System.out.println(i);
            }
        }
    }
    
    //Function to check prime number
    private static boolean checkPrime(int num) {

        int flag = 0;
        for(int k=2;k<=num/2;k++) {
            if(num%k == 0 ) {
                flag = 1;
                break;
            }
        }
        
        if(flag == 1)
            return false;
        else
            return true;
    }
}
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Input:
Enter a range :
10
Output:
The all prime numbers are :
2
3
5
7
Input: Enter a range : 10 Output: The all prime numbers are : 2 3 5 7
Input:
Enter a range : 
10

Output:
The all prime numbers are : 
2
3
5
7

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