Programming Tip:
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Some example Java code to read the contents of text file into a string array, line-by-line. Here is the Java class which is used to output the string array after the file location has been passed to it:
// ReadFile.java package javareadtextfile; import java.io.IOException; import java.io.BufferedReader; import java.io.FileReader; import java.io.IOException; import java.util.ArrayList; import java.util.List; public class ReadFile { public String[] readLines(String filename) throws IOException { FileReader fileReader = new FileReader(filename); BufferedReader bufferedReader = new BufferedReader(fileReader); List<String> lines = new ArrayList<String>(); String line = null; while ((line = bufferedReader.readLine()) != null) { lines.add(line); } bufferedReader.close(); return lines.toArray(new String[lines.size()]); } }
And here is some code showing the actual usage of the ReadFile class. An exception is thrown if the program cannot find the filename passed to it:
package javareadtextfile; import java.io.IOException; public class JavaReadTextFile { public static void main(String[] args) { ReadFile rf = new ReadFile(); // The text file location of your choice String filename = "c:/dump/Hamlet.txt"; try { String[] lines = rf.readLines(filename); for (String line : lines) { System.out.println(line); } } catch(IOException e) { // Print out the exception that occurred System.out.println("Unable to create "+filename+": "+e.getMessage()); } } }
You might wish to try this with the following piece of text.