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Scala File Input and Output

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Overview of reading and writing file operations

File operations mostly include reading data from the file or writing data into files.

Writing Data from File
e.g.

import java.io._
object Intellipaat {
def main(args: Array[String]) {
val writer = new PrintWriter(new File("intellipaat.txt" ))
writer.write("Hello Intellipaat")
writer.close()
}
}

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When we compile and execute this program then it writes Hello Intellipaat in intellipaat.txt file.

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Reading Data from File
e.g.

import scala.io.Source
object Intellipaat {
def main(args: Array[String]) {
println("Data in File is:" )
Source.fromFile("intellipaat.txt" ).foreach{
print
}
}
}

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Compile and execute the above program:
scalac Intellipaat.scala
scala Intellipaat
Output
Data in file is: Hello Intellipaat

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