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Get Even Numbers Using Java Stream API

Java Stream API — Even Numbers (Full Screen) Java Stream API — Get Even Numbers Example 1 — Filter even numbers from a list Creates a list, uses Stream to filter evens, and prints them. Copy import java.util.*; import java.util.stream.*; public class EvenNumbersStream { public static void main(String[] args) { // Create a list of numbers List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10); // Use Stream API to filter even numbers List<Integer> evenNumbers = numbers.stream() .filter(n -> n % 2 == 0) .collect(Collectors.toList()); // Print the even numbers System.out.println( "Even numbers: " + evenNumbers); } } Example 2 — Use IntStream.rangeClosed ...
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Write into a text-file(.txt) and again read the content(in Run-Time) using C-Language



In this C program we will Write some content into a text-file(.txt). Then, we will again open the text-file(.txt) in this same program and read the content entered by the user.

input:

The String or Content entered by the User.

output:

The content will be stored into the specified text-file(.txt) and the content of the text-file(.txt) will be printed on the screen.

CODE---->


#include<stdio.h>
#include<stdlib.h>
int main()
{
 FILE *fp,*fr;
 char s[80],ch;
 int i=0;
 fp=fopen("New File.txt","w");
 if(fp==NULL)
 printf("Unable to Open File.");
 else
 {
  printf("Please, Enter a String : ");
  fgets(s,sizeof(s),stdin);
  while(s[i]!='\0')
  {
   fputc(s[i],fp);
   i++;
  }
  printf("\n Your File has been saved.");
  fclose(fp);

 }
 printf("\n\n");
 fr=fopen("New File.txt", "r");
 if(fr==NULL)
 printf("unable to open File.");
 else
 {
  ch=fgetc(fr);
  while(ch!=EOF)
  {
   printf("%c",ch);
   ch=fgetc(fr);
  }
 }
 fclose(fr);
 return 0;
}

N.B. : In this C-Program the used text-file(.txt) and the C-Program file was stored in the same directory or path. So, if you want to open the text-file(.txt) stored in any other directory, path or folder, then, you have to declare the whole path or directory in the program.(i.e : fp=fopen("C:\\Users\\ADMIN\Desktop\\...the directory...\\file_name.txt")). The directory of a text-file(.txt) can be found by it's Property and if the text-file(.txt) is not created before Running the program, a file will be created in the specified path or folder with the name used in the program.
Don't just read, write it, run it.....

RESULT:


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