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How to open notepad using java program

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instanceof java

Posts: 576
Nickname: instanceof
Registered: Jan, 2015

instanceof java is a java related one.
How to open notepad using java program Posted: Jul 22, 2016 10:44 AM
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This post originated from an RSS feed registered with Java Buzz by instanceof java.
Original Post: How to open notepad using java program
Feed Title: Instance Of Java
Feed URL: http://feeds.feedburner.com/blogspot/TXghwE
Feed Description: Instance of Java. A place where you can learn java in simple way each and every topic covered with many points and sample programs. 		Latest Java Buzz Posts
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Advertisement
  • Notepad is a text editor from windows operating system. We use notepad for writing text files.
  • We can open a new notepad using java code.
  • By using the concept of running another application by Runtime class in java.
  • By creating object of runtime and calling  exec() method by passing application name.
  • Lets see how to open a notepad using java code




Program #1: Java example program to open notepad


  1. package interestingJavaprograms;
  2. import java.io.IOException;
  3.  
  4. public class NotepadJava {
  5.  
  6.     /**
  7.      * @ www.instanceofjava.com
  8.      * @ how to open a new notepad using java program
  9.      */
  10. public static void main(String[] args) {
  11.        
  12.           Runtime rt = Runtime.getRuntime();
  13.           
  14. try {
  15.       rt.exec("notepad");
  16. }
  17.  catch (IOException ex) {
  18.  
  19.  System.out.println(ex);
  20.  
  21. }  
  22.  
  23. }
  24.  
  25. }

 Output:

open notepad using java


Program #2: Java example program to open notepad and after 2 seconds close it.


  1. package interestingJavaprograms;
  2. import java.io.IOException;
  3.  
  4. public class NotepadJava {
  5.  
  6.     /**
  7.      * @ www.instanceofjava.com
  8.      * @ how to open a new notepad using java program
  9.      */
  10. public static void main(String[] args) throws InterruptedException, IOException {
  11.         
  12. Runtime runTime = Runtime.getRuntime();
  13. System.out.println("Opening notepad");
  14. Process process = runTime.exec("notepad");
  15.           
  16. try {
  17.  
  18.  
  19. Thread.sleep(200); 

  21.  process.destroy();
  22.  System.out.println("Closing notepad");
  23.  
  24. }
  25.  catch (Exception ex) {
  26.  
  27.  System.out.println(ex);
  28.  
  29. }  
  30.  
  31. }
  32.  
  33. }

  • We can open already existing notepad also for that we need to specify notepad.exe location and path of the destination file.
  • We need to pass these two parameters  to exec method of runtime class.
  • runTime.exec("C:\\Windows\\System32\\notepad.exe E:\\Samplenotepad.txt");

Program #1: Java example program to open exiting notepad txt file.


  1. package interestingJavaprograms;
  2. import java.io.IOException;
  3.  
  4. public class NotepadJava {
  5.  
  6.     /**
  7.      * @ www.instanceofjava.com
  8.      * @ how to open a new notepad using java program
  9.      */
  10. public static void main(String[] args) {
  11.        
  12.           Runtime rt = Runtime.getRuntime();
  13.           
  14. try {
  15.    runTime.exec("C:\\Windows\\System32\\notepad.exe E:\\Samplenotepad.txt");
  16. }
  17.  catch (IOException ex) {
  18.  
  19.  System.out.println(ex);
  20.  
  21. }  
  22.  
  23. }
  24.  
  25. }

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