Print A to Z Characters in Java

public class PrintAlphabets {
    public static void main(String[] args) {
        char ch;
        for(ch='a';ch<'z';ch++){
            System.out.println("Letters from A to Z: "+ch);
        }
    }
}

Microsoft and Apple

Microsoft Has Changed its logo after 25 years of software industry... here is its new logo..

What is the output?

class ConditionalIf{
 
public static void main(String args[]){

int i = 1;

int j = i++;

if ((i == ++j) | (i++ == j)) {

  i += j;

}

System.out.println("i = " + i);
} }

Factorial using While in Java

import java.util.Scanner;

class FactorialWhile{

 public static void main(String args[]){

    int fact=1,num,i=1;

    System.out.println("Enter the number:");

   Scanner in=new Scanner(System.in);

   num=in.nextInt();

  while(i<=num){

    fact=fact*i;

    i++;
}

  System.out.println("factorial of given number is "+fact);
}  }

File creation in Java

import java.io.*;

public class FileCreation {

public static void main(String args[]) throws IOException{ 

// throws IOException to handle Exception

   File f=new File("F:/sam.txt"); //F is the drive and sam.txt is the name of file...

    if(!f.exists()){

     f.createNewFile();
 
   System.out.println("File created successfully");
         }
   else

   System.out.println("file creation error/file exists already");
                                        }
                                            }

Java program to get Environment variables

public class getSystemProperties {

    public static void main(String[] args) {
 
        String os=System.getProperty("os.name");
        System.out.println("Current OS Name: "+os);
 
        String home=System.getProperty("user.home");
        System.out.println("Home directory of Current user : "+home);
 
        String version=System.getProperty("os.version");
        System.out.println("Versio of OS: "+ version);
 
        String arch=System.getProperty("os.arch");
        System.out.println("Architecture of OS: "+ arch);
 
        String jver=System.getProperty("java.version");
        System.out.println("Java Version: "+jver);


        String uname=System.getProperty("user.name");
        System.out.println(uname);
       
    }
}

SImple Thread Program To Pause For Loop

class ThreadExample{
  public static void main(String args[])
   {
        Thread th=new Thread();
      try{
          for(int i=0;i<10;i++)
    {
                System.out.println(" Value "+i);
     th.sleep(2000);
              }
          }
           catch(Exception e)
    {
     System.out.println(" "+e.getMessage());
    }
    }
         }