Example usage for java.io FileWriter close

List of usage examples for java.io FileWriter close

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Introduction

In this page you can find the example usage for java.io FileWriter close.

Prototype

public void close() throws IOException

Source Link

Usage

From source file:MainClass.java

public static void main(String args[]) throws IOException {
    // Write output to a file.
    FileWriter fout = new FileWriter("test.txt");
    fout.write("int: 1  double 1.0  boolean true");
    fout.close();

    FileReader fin = new FileReader("Test.txt");

    Scanner src = new Scanner(fin);

    while (src.hasNext()) {
        if (src.hasNextInt()) {
            System.out.println("int: " + src.nextInt());
        } else if (src.hasNextDouble()) {
            System.out.println("double: " + src.nextDouble());
        } else if (src.hasNextBoolean()) {
            System.out.println("boolean: " + src.nextBoolean());
        } else {// w ww  .j av a  2s .  com
            System.out.println(src.next());
        }
    }
    fin.close();
}

From source file:MainClass.java

public static void main(String args[]) throws IOException {

    FileWriter fout = new FileWriter("test.txt");
    fout.write("2, 3.4,    5,6, 7.4, 9.1, 10.5, done");
    fout.close();

    FileReader fin = new FileReader("Test.txt");
    Scanner src = new Scanner(fin);
    // Set delimiters to space and comma.
    // ", *" tells Scanner to match a comma and zero or more spaces as
    // delimiters.

    src.useDelimiter(", *");

    // Read and sum numbers.
    while (src.hasNext()) {
        if (src.hasNextDouble()) {
            System.out.println(src.nextDouble());
        } else {//from   w  ww . ja v  a2s .  c o  m
            break;
        }
    }
    fin.close();
}

From source file:MainClass.java

public static void main(String args[]) throws IOException {

    int count = 0;
    double sum = 0.0;

    FileWriter fout = new FileWriter("test.txt");
    fout.write("2 3.4 5 6 7.4 9.1 10.5 done");
    fout.close();

    FileReader fin = new FileReader("Test.txt");

    Scanner src = new Scanner(fin);

    while (src.hasNext()) {
        if (src.hasNextDouble()) {
            sum += src.nextDouble();//from ww  w  .ja v  a  2  s  .  c o m
            count++;
        } else {
            String str = src.next();
            if (str.equals("done"))
                break;
            else {
                System.out.println("File format error.");
                return;
            }
        }
    }

    fin.close();
    System.out.println("Average is " + sum / count);
}

From source file:MainClass.java

public static void main(String[] a) {
    FileWriter writer;
    try {/*from  ww w .  j  av a2 s.co m*/
        writer = new FileWriter("myFile.txt");
        char c = 'A';
        writer.write(c);
        writer.close();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

}

From source file:MainClass.java

public static void main(String args[]) throws IOException {
    int i;/*from w w  w . j  av a2s  .com*/
    double d;
    boolean b;
    String str;

    FileWriter fout = new FileWriter("test.txt");
    fout.write("string true false 1 2 3 4.12");
    fout.close();

    FileReader fin = new FileReader("Test.txt");

    Scanner src = new Scanner(fin);

    while (src.hasNext()) {
        if (src.hasNextInt()) {
            i = src.nextInt();
            System.out.println("int: " + i);
        } else if (src.hasNextDouble()) {
            d = src.nextDouble();
            System.out.println("double: " + d);
        } else if (src.hasNextBoolean()) {
            b = src.nextBoolean();
            System.out.println("boolean: " + b);
        } else {
            str = src.next();
            System.out.println("String: " + str);
        }
    }

    fin.close();
}

From source file:Main.java

public static void main(String args[]) throws IOException {

    int count = 0;
    double sum = 0.0;

    FileWriter fout = new FileWriter("test.txt");

    fout.write("2, 3.4,    5,6, 7.4, 9.1, 10.5, done");
    fout.close();

    FileReader fin = new FileReader("Test.txt");

    Scanner src = new Scanner(fin);

    src.useDelimiter(", *");

    while (src.hasNext()) {
        if (src.hasNextDouble()) {
            sum += src.nextDouble();/*from  ww  w.j a va2s . com*/
            count++;
        } else {
            String str = src.next();
            if (str.equals("done"))
                break;
            else {
                System.out.println("File format error.");
                return;
            }
        }
    }

    fin.close();
    System.out.println("Average is " + sum / count);
}

From source file:MainClass.java

public static void main(String args[]) throws IOException {
    int count = 0;
    double sum = 0.0;

    FileWriter fout = new FileWriter("test.txt");

    fout.write("2, 3.4,    5,6, 7.4, 9.1, 10.5, done");
    fout.close();

    FileReader fin = new FileReader("Test.txt");

    Scanner src = new Scanner(fin);

    src.useDelimiter(", *");

    while (src.hasNext()) {
        if (src.hasNextDouble()) {
            sum += src.nextDouble();/* w w  w. j a v a  2s.co  m*/
            count++;
        } else {
            String str = src.next();
            if (str.equals("done"))
                break;
            else {
                System.out.println("File format error.");
                return;
            }
        }
    }

    fin.close();
    System.out.println("Average is " + sum / count);
}

From source file:edu.berkeley.compbio.ncbitaxonomy.Exporter.java

public static void main(String[] argv) {
    try {/*from  w  w  w.j  av a2s . c om*/
        ApplicationContext ctx = NcbiTaxonomyDbContextFactory.makeNcbiTaxonomyDbContext();
        NcbiTaxonomyPhylogeny ncbi = (NcbiTaxonomyPhylogeny) ctx.getBean("ncbiTaxonomyPhylogeny");

        FileWriter treeWriter = new FileWriter("tree.newick");
        ncbi.toNewick(treeWriter, "", "", 0, 0);
        treeWriter.close();

        FileWriter synonymWriter = new FileWriter("synonyms");
        ncbi.writeSynonyms(synonymWriter);
        synonymWriter.close();

        for (String rank : ranks) {
            FileWriter rankWriter = new FileWriter(rank);
            Set<Integer> ids = ncbi.getTaxIdsWithRank(rank);
            for (Integer id : ids) {
                rankWriter.append(id.toString()).append("\n");
            }
            rankWriter.close();
        }
    } catch (Throwable e) {
        e.printStackTrace();
    }
}

From source file:ScanMixed.java

public static void main(String args[]) throws IOException {
    int i;/* w  w  w  .  j  a  v  a 2 s.  c o  m*/
    double d;
    boolean b;
    String str;

    FileWriter fout = new FileWriter("test.txt");
    fout.write("Testing Scanner 10 12.2 one true two false");
    fout.close();

    FileReader fin = new FileReader("Test.txt");

    Scanner src = new Scanner(fin);

    while (src.hasNext()) {
        if (src.hasNextInt()) {
            i = src.nextInt();
            System.out.println("int: " + i);
        } else if (src.hasNextDouble()) {
            d = src.nextDouble();
            System.out.println("double: " + d);
        } else if (src.hasNextBoolean()) {
            b = src.nextBoolean();
            System.out.println("boolean: " + b);
        } else {
            str = src.next();
            System.out.println("String: " + str);
        }
    }

    fin.close();
}

From source file:Main.java

public static void main(String args[]) throws IOException {
    String source = "test";
    char buffer[] = new char[source.length()];
    source.getChars(0, source.length(), buffer, 0);

    FileWriter f0 = new FileWriter("file1.txt");
    for (int i = 0; i < buffer.length; i += 2) {
        f0.write(buffer[i]);/*from  w  w  w .j a va  2 s  .co  m*/
    }
    f0.close();

    FileWriter f1 = new FileWriter("file2.txt");
    f1.write(buffer);
    f1.close();

    FileWriter f2 = new FileWriter("file3.txt");

    f2.write(buffer, buffer.length - buffer.length / 4, buffer.length / 4);
    f2.close();
}