- Java Basic Programs
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- Check Reverse equal Original
- Java Fahrenheit to Celsius
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- Java Perfect Number Program
- Java Find Quotient Remainder
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- Java Count Digits in Number
- Java Binary Number Addition
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- Java Find Telephone Bill
- Java Print ASCII Values
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- Generate Armstrong Numbers
- Add two Numbers using Pointers
- Java Mathematical Programs
- Add Subtract Multiply & Divide
- Java Make Calculator
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- Java Add n Numbers
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- Count Positive Negative & Zero
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- Java Find Factorial of Number
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- Java Conversion Programs
- Java Decimal to Binary
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- Java Pattern Programs
- Java Pattern of Stars
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- Java Array Programs
- One Dimensional Array Program
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- Java Merge two Array
- Java Bubble Sort
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- Java Find Common Elements
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- Two Dimensional Array Program
- Java Add two Matrices
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- Java Transpose Matrix
- Multiply two Matrices
- Three Dimension Array Program
- Java String Programs
- Java Print String
- Find Length of String
- Java Compare two String
- Java Copy String
- Java Concatenate String
- Java Reverse String
- Delete Vowels from String
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- Find Occurrence of a Character
- Java Find Occurrence of a Word
- Occurrence of Each Character
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- Java Capitalize Each Word
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- Remove Spaces from String
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- Java Uppercase to Lowercase
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- Java Swap two Strings
- Java Check Anagram or Not
- Java Check Balance Parentheses
- Java Check Password Strength
- Java File Programs
- Java Read File
- Java Write to File
- Read & Display File Content
- Java Copy File
- Java Append Text to File
- Java Merge two File
- List files in Directory
- Java Delete File
- Java Miscellaneous Programs
- Generate Random Numbers
- Java Print Time & Date
- Java Get IP Address
- Java Shutdown Computer
- Java Programming Tutorial
- Java Tutorial
Java Program to Write to a File
This article is created to cover a program in Java that writes some content entered by user at run-time of the program, to a file also entered by user.
Write to a File in Java
The question is, write a Java program to write some text to a given file. The program given below is its answer:
import java.util.Scanner; import java.io.*; public class fresherearth { public static void main(String[] args) { String myfile, content; Scanner scan = new Scanner(System.in); System.out.print("Enter the Name of File: "); myfile = scan.nextLine(); try { FileWriter fw = new FileWriter(myfile); System.out.print("\nEnter the Content: "); content = scan.nextLine(); fw.write(content); fw.close(); System.out.println("\nContent written to the file successfully."); } catch(IOException ioe) { System.out.println("\nException: " +ioe); } } }
The snapshot given below shows the sample run of above program with user input fresherearth.txt as the name of file, and Hey, I'm the content. as content to write it into the given file:
If the file fresherearth.txt is already available in your current directory, the directory where the above source code is saved. Then the content gets overwritten to this file. Otherwise a file with same name gets created and the content gets written. Here is the snapshot of the current directory, along with opened file fresherearth.txt in my case, after executing the above program:
Write to File Line by Line in Java
This program is created in a way to allow user to write multiple lines of text to a file. That is, this program is based on the write content to a file line by line.
import java.util.Scanner; import java.io.*; public class fresherearth { public static void main(String[] args) { String fileName, text; int noOfLines, i; Scanner scan = new Scanner(System.in); System.out.print("Enter File's Name: "); fileName = scan.nextLine(); try { FileWriter fw = new FileWriter(fileName); BufferedWriter bw = new BufferedWriter(fw); System.out.print("How many lines of content to write ? "); noOfLines = scan.nextInt(); System.out.print("Enter " +noOfLines+ " lines of text: "); for(i=0; i<noOfLines+1; i++) { text = scan.nextLine(); text = text + "\n"; bw.write(text); } System.out.println("\nContent written to the file successfully."); bw.close(); } catch(IOException ex) { System.out.println("Error writing to file named '" +fileName+ "' ..!!"); } } }
Same Program in Other Languages
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