Example usage for java.util Arrays copyOf

Introduction

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

Prototype

public static boolean[] copyOf(boolean[] original, int newLength)

Source Link

Document

Copies the specified array, truncating or padding with false (if necessary) so the copy has the specified length.

Usage

From source file:MainClass.java

public static void main(String args[]) {
    int arrayOriginal[] = { 42, 55, 21 };
    int arrayNew[] = Arrays.copyOf(arrayOriginal, 3);
    printIntArray(arrayNew);/*from w  ww . j a  va 2s.c  o  m*/
}

From source file:ArrayCopy.java

public static void main(String args[]) {
    System.out.printf("Before (original)\t%s%n", Arrays.toString(args));
    String copy[] = Arrays.copyOf(args, 4);
    System.out.printf("Before (copy)\t\t%s%n", Arrays.toString(copy));
    copy[0] = "A";
    copy[1] = "B";
    copy[2] = "C";
    copy[3] = "D";
    System.out.printf("After (original)\t%s%n", Arrays.toString(args));
    System.out.printf("After (copy)\t\t%s%n", Arrays.toString(copy));
}

From source file:ArrayReallocationDemo.java

public static void main(String[] args) {
    int[] data1 = new int[] { 1, 3, 5, 7, 9 };

    printArray(data1);/*from ww w  . j av  a 2  s  .  co  m*/
    int[] data2 = Arrays.copyOf(data1, 6);
    data2[5] = 11;
    printArray(data2);

    int[] data3 = Arrays.copyOfRange(data1, 2, 10);
    printArray(data3);
}

From source file:Main.java

public static void main(String[] args) {

    byte[] arr1 = new byte[] { 5, 15, 25 };

    System.out.println(Arrays.toString(arr1));

    // copying array arr1 to arr2 with newlength as 5
    byte[] arr2 = Arrays.copyOf(arr1, 5);
    arr2[3] = 0;//from   www .  j  a v a 2  s  .co  m
    arr2[4] = 1;

    System.out.println(Arrays.toString(arr2));
}

From source file:Main.java

public static void main(String[] args) {

    char[] arr1 = new char[] { 'j', 'a', 'v' };

    System.out.println(Arrays.toString(arr1));

    // copying array arr1 to arr2 with newlength as 5
    char[] arr2 = Arrays.copyOf(arr1, 5);
    arr2[3] = 'a';
    arr2[4] = '2';

    System.out.println(Arrays.toString(arr2));
}

From source file:Main.java

public static void main(String[] args) {
    boolean[] arr1 = new boolean[] { true, false };

    System.out.println(Arrays.toString(arr1));

    // copying array arr1 to arr2 with newlength as 4
    boolean[] arr2 = Arrays.copyOf(arr1, 4);

    // printing the array arr2
    System.out.println(Arrays.toString(arr2));
}

From source file:Main.java

public static void main(String[] args) {

    short[] arr1 = new short[] { 1, 10, 25 };

    System.out.println(Arrays.toString(arr1));

    // copying array arr1 to arr2 with newlength as 5 as Object
    Object arr2 = Arrays.copyOf(arr1, 5);

    // cast arr2 as short in order to be printable
    short[] arr3 = (short[]) arr2;

    System.out.println(Arrays.toString(arr3));
}

From source file:Main.java

public static void main(String[] args) {

    // intializing an array arr1
    int[] arr1 = new int[] { 1, 2, 3 };

    System.out.println(Arrays.toString(arr1));

    // copying array arr1 to arr2 with newlength as 5
    int[] arr2 = Arrays.copyOf(arr1, 5);
    arr2[3] = 4;/* ww  w.  j  a va2 s. c om*/
    arr2[4] = 5;

    System.out.println(Arrays.toString(arr2));
}

From source file:Main.java

public static void main(String[] args) {

    // intializing an array arr1
    short[] arr1 = new short[] { 1, 10, 15 };

    System.out.println(Arrays.toString(arr1));

    // copying array arr1 to arr2 with newlength as 5
    short[] arr2 = Arrays.copyOf(arr1, 5);
    arr2[3] = 100;//  www  . jav a2  s. c  om
    arr2[4] = 200;

    System.out.println(Arrays.toString(arr2));
}

From source file:Main.java

public static void main(String[] args) {

    // intializing an array arr1
    long[] arr1 = new long[] { 1L, 10L, 45L };

    System.out.println(Arrays.toString(arr1));

    // copying array arr1 to arr2 with newlength as 5
    long[] arr2 = Arrays.copyOf(arr1, 5);
    arr2[3] = 12L;/*from w  w w  . j  a  va  2 s .co m*/
    arr2[4] = 123456789L;

    System.out.println(Arrays.toString(arr2));
}