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welcome java file handling tutorial . in this tutorial we are going to wrie text file using  java here i have used Filewirter to write . use following steps to read text file using java  program 1. create one folder on d drive as f that is name of folder is f 2. create demo.txt file to write on it using program 3. create java program use following code or follow steps from video save java program in same folder import java.io.* package properly in java program 4. compile program and run 5. to understand program read what is FileReader read program explanation given below. // Program by Prakash Sonar import java.io.*; class jWrite { public static void main(String s[]) { try{ FileWriter w=new FileWriter("demo.txt",true); w.write("welcome to Prakash Programming Tutorial"); w.write("\n "); w.write("Thanks for Watching"); w.close(); } catch(Exception e){} } ...

lets learn how to write java  program to read file line by line code is given below follow the steps from video import java.io.*; // program by Prakash Sonar class JfReadLine {   public static void main(String s[])   {     try {  FileReader r=new FileReader("t2.txt");  BufferedReader br=new BufferedReader(r);  String line;  while((line=br.readLine())!=null)  {  System.out.println(line);  } r.close(); } catch( Exception e) { }   } }

welcome java file handling tutorial . in this tutorial we are going to learn how to read text file using  java here i have used FileReader to  read file Character by Character. use following steps to read text file using java  program 1. create one folder on d drive as f that is name of folder is f 2. create t1.txt file write some text on it 3. create java program use following code or follow steps from video save java program in same folder import java.io.* package properly in java program 4. compile program and run 5. to understand program read what is FileReader read program explanation given below. save RfileCh.java // program by Prakash import java.io.*; class RfileCh {  public static void main(String s[])  {   try{        FileReader r=new FileReader("t1.txt");   // used to open a file   int ch;     while((ch=r.read())!=-1)   // here -1 is end of ...

Nested Classes In Java, just like methods, variables of a class too can have another class as its member. Writing a class within another is allowed in Java. The class written within is called the nested class , and the class that holds the inner class is called the outer class . class Outer {  private class Inner  {    void dispaly()    {        System.out.println("this is inner class");       }   }  void call()  {    Inner obj=new Inner();    obj.dispaly();  } } class InnerDemo { public static void main(String s[]) {  Outer ob=new Outer();  ob.call(); } } Example solve watch video for understanding  // inner class By Prakash Sonar class outer {  private class Inner  {    void display()   {      System.out.println...

How to create user define exception in java ? Lets Create user defied exception in java . In this java tutorial i am using simple java code example where we accept number from user if number is one our program will throw user defied exception . You will find video tutorial also for this assignment on you tube . there are different types of exception in java mainly 1.User Defined   (user need to handle this exception) 2. System Defined ( it is defined by system itself/ Default  ) we are going to use following block in our program         try         {    //Program logic goes here  } catch           {    } finally           {     } Steps to create user define exception in java  create user define exception class which extends Exception define constructor for user defined exception class ...

java creating simple package containing class and display method in another program accessing that package using import keyword video tutorial A   package  is a collection of related classes. it helps improve   re-usability. It helps   Organize  your classes into a folder structure and make it easy to locate and use them. Syntax used to create package is  package;   Step 1)   Consider the following code, ·        Save as demo.java ·        Compile using javac demo.java ·        Re comple ·        javac -d . demo.java ·        Packge name folder created ·         Java p1.c1 fully qulified name is used to run mehtod  package p1; class c1{ public void m1() { System.out.println("pakge class "); } ...

Learn basic java from basic,learn basic java from basic, learn java from basic, understand java program from basic, pass string to java program, pass number to java program, java basic dynamic program, accept number and print using java program, accept name and display message java dynamic program, java type casting programming example  Hi friends in this blog post i am sharing with you java basics concepts this is day two tutorial . You must know installation and how to run java program in my previous post .  click here to know more  in assignment one we are going to print simple hello word message  in second program we are going to pass string parameter to java program and  in third assignment we are going to pass number parameter . to understand you must know the basic structure of java program   lets understand basic structure of java program  java program start with class name java class as shown in foll...