Example usage for java.util Arrays toString

Introduction

In this page you can find the example usage for java.util Arrays toString.

Prototype

public static String toString(Object[] a)

Source Link

Document

Returns a string representation of the contents of the specified array.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    Class<?> class1 = Class.forName("Rate");
    Object obj = class1.newInstance();
    for (Method m : class1.getMethods()) {
        if (m.getName().equals("myMethod")) {
            Class<?>[] parameterTypes = m.getParameterTypes();
            System.out.println(Arrays.toString(m.getParameterTypes()));
            Object methodArgs[] = new Object[parameterTypes.length];
            for (Class<?> parameterType : parameterTypes) {
                if (parameterType == Double.TYPE) {
                    double value = 0.5;
                    methodArgs[0] = value;
                }/*from  w  ww .j  ava 2 s. com*/
            }
            Rate rate = (Rate) m.invoke(obj, methodArgs);
            System.out.println(rate.getValue());
        }
    }
}

From source file:Main.java

public static void main(String[] args) {

    ArrayList<Integer> arrlist = new ArrayList<Integer>();

    arrlist.add(10);/*from   w ww .jav  a  2 s.  c  o  m*/
    arrlist.add(12);
    arrlist.add(31);
    arrlist.add(49);

    // toArray copies content into other array
    Integer myArray[] = new Integer[arrlist.size()];
    myArray = arrlist.toArray(myArray);

    System.out.println(Arrays.toString(myArray));

}

From source file:Main.java

public static void main(String[] args) {
    DoubleBuffer bb = DoubleBuffer.allocate(BSIZE);
    bb.put(98765);//from w w  w . jav  a  2  s .c  o m
    bb.put(98765);
    bb.put(98765);
    bb.put(98765);
    bb.put(98765);

    bb.rewind();

    double[] doubleArray = new double[BSIZE];

    bb.get(doubleArray, 0, 2);

    System.out.println(Arrays.toString(doubleArray));

}

From source file:Main.java

public static void main(String[] args) {

    LinkedList<String> list = new LinkedList<String>();

    list.add("Hello");
    list.add("from java2s.com");
    list.add("java tutorial");

    // print the list
    System.out.println("LinkedList:" + list);

    // create an array and copy the list to it
    Object[] array = list.toArray();

    System.out.println(Arrays.toString(array));
}

From source file:Main.java

public static void main(String[] args) {

    LinkedList<String> list = new LinkedList<String>();

    // add some elements
    list.add("Hello");
    list.add("from java2s.com");
    list.add("java tutorial");

    System.out.println(list);/*from ww  w.  j  a v  a 2  s. c o  m*/

    // create an array and copy the list to it
    Object[] array = list.toArray(new Object[4]);

    System.out.println(Arrays.toString(array));

}

From source file:Main.java

public static void main(String[] args) {
    ArrayList<String> al = new ArrayList<String>();
    al.add("Java");
    al.add("SQL");
    al.add("Data");

    System.out.println("ArrayList:" + al);
    String[] s1 = new String[al.size()];

    String[] s2 = al.toArray(s1);

    System.out.println("s1 == s2:" + (s1 == s2));
    System.out.println("s1:" + Arrays.toString(s1));
    System.out.println("s2:" + Arrays.toString(s2));

    s1 = new String[1];
    s1[0] = "hello"; // Store hello in first element

    s2 = al.toArray(s1);/*w w  w.  ja  v a  2  s.  c  o  m*/

    System.out.println("s1 == s2:" + (s1 == s2));
    System.out.println("s1:" + Arrays.toString(s1));
    System.out.println("s2:" + Arrays.toString(s2));
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    BufferedInputStream is = new BufferedInputStream(new FileInputStream("a.exe"));
    byte[] bytes = new byte[1024];
    int len = 0;/*from w  w w.  j ava  2 s  . c  om*/

    while ((len = is.read(bytes)) >= 0) {
        new CRC32().update(bytes, 0, len);
    }
    is.close();
    System.out.println(Arrays.toString(bytes));

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    byte[] invalidBytes = " ".getBytes();
    byte[] validBytes = "(c)".getBytes();

    CharsetDecoder decoder = Charset.forName("US-ASCII").newDecoder();
    CharBuffer buffer = decoder.decode(ByteBuffer.wrap(validBytes));
    System.out.println(Arrays.toString(buffer.array()));

    buffer = decoder.decode(ByteBuffer.wrap(invalidBytes));
    System.out.println(Arrays.toString(buffer.array()));
}

From source file:Main.java

public static void main(String[] args) {
    List<String> colours = new ArrayList<String>();
    colours.add("red");
    colours.add("green");
    colours.add("blue");
    colours.add("yellow");
    colours.add("cyan");
    colours.add("white");
    colours.add("black");

    Collections.sort(colours);//from ww  w .jav  a2  s  .  com
    System.out.println(Arrays.toString(colours.toArray()));

    Collections.sort(colours, Collections.reverseOrder());
    System.out.println(Arrays.toString(colours.toArray()));
}

From source file:Main.java

public static void main(String[] args) {
    int[] i = shuffle(new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 });
    System.out.print(Arrays.toString(i));
}