Example usage for java.lang System arraycopy

Introduction

In this page you can find the example usage for java.lang System arraycopy.

Prototype

@HotSpotIntrinsicCandidate
public static native void arraycopy(Object src, int srcPos, Object dest, int destPos, int length);

Source Link

Document

Copies an array from the specified source array, beginning at the specified position, to the specified position of the destination array.

Usage

From source file:Main.java

public static byte[] concat(byte[] a, byte[] b) {
    byte[] c = new byte[a.length + b.length];
    System.arraycopy(a, 0, c, 0, a.length);
    System.arraycopy(b, 0, c, a.length, b.length);

    return c;/*from  ww w .  j a va  2s. c  o m*/
}

From source file:Main.java

public static void set4fArray(float[] destination, float[] source) {
    System.arraycopy(source, 0, destination, 0, 4);
}

From source file:Main.java

public static byte[] get(byte[] array, int offset, int length) {
    byte[] result = new byte[length];
    System.arraycopy(array, offset, result, 0, length);
    return result;
}

From source file:Main.java

public static void copyBinaryArray(byte[][] src, byte[][] dest) {
    for (int i = 0; i < 8; i++) {
        System.arraycopy(src[i], 0, dest[i], 0, 8);
    }//from w w w  .ja  va 2s  .c o m
}

From source file:Main.java

public static byte[] join(byte[] src, byte[] des) {
    byte[] result = new byte[src.length + des.length];
    System.arraycopy(src, 0, result, 0, src.length);
    System.arraycopy(des, 0, result, src.length, des.length);
    return result;
}

From source file:Main.java

public static byte[] extractByteArray(byte[] body, int start, int length) {
    byte[] a = new byte[length];
    System.arraycopy(body, start, a, 0, length);
    return a;/*w w w  . j  a  v  a2 s . com*/
}

From source file:Main.java

public static byte[] bytes2Bytes(byte[] b1, byte[] b2) {
    byte[] ret = new byte[b1.length + b2.length];
    System.arraycopy(b1, 0, ret, 0, b1.length);
    System.arraycopy(b2, 0, ret, b1.length, b2.length);
    return ret;//  www  .  j av a 2 s .co  m
}

From source file:Main.java

public static byte[] getCopyByteArray(byte[] src, int start, int length) {
    byte[] dest = new byte[length];
    System.arraycopy(src, start, dest, 0, length);
    return dest;/*from ww  w.jav  a 2 s .  c om*/
}

From source file:Main.java

public static byte[] arrayApend(byte[] prep, byte after) {
    byte[] result = new byte[prep.length + 1];
    System.arraycopy(prep, 0, result, 0, prep.length);
    result[prep.length] = after;//www . java  2s  .  co  m
    return result;
}

From source file:Main.java

public static int[] insert(int[] array, int pos, int value) {
    int[] newArray = new int[array.length + 1];
    System.arraycopy(array, 0, newArray, 0, pos);
    newArray[pos] = value;/*from  w ww. ja v  a2 s  . c om*/
    System.arraycopy(array, pos, newArray, pos + 1, array.length - pos);
    return newArray;
}