Java Short Number Array Create toShorts(byte[] value, int offset, int num)

Description

to Shorts

License

Apache License

Declaration

public static short[] toShorts(byte[] value, int offset, int num) 

Method Source Code

//package com.java2s;
/**//  w  w  w  .j a v  a  2 s .  c  o  m
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

public class Main {
    public static short[] toShorts(byte[] value, int offset, int num) {
        short[] values = new short[num];
        int idx = 0;
        for (int i = offset; i < offset + (num * 2); i += 2) {
            values[idx++] = getShort(value, i);
        }
        return values;
    }

    public static short[] toShorts(byte[] value, int offset) {
        int length = getInt(value, offset);
        return toShorts(value, offset + 4, length);
    }

    public static short getShort(final byte[] b, final int offset) {
        return (short) (b[offset] << 8 | b[offset + 1] & 0xFF);
    }

    public static int getInt(final byte[] b, final int offset) {
        return (b[offset + 0] & 0xFF) << 24 | (b[offset + 1] & 0xFF) << 16 | (b[offset + 2] & 0xFF) << 8
                | (b[offset + 3] & 0xFF) << 0;
    }
}

Related

1. toShortArray(boolean[] array)
2. toShorts(byte[] array, int offset, int length)
3. toShorts(byte[] bytes)
4. toShorts(byte[] readBuffer, int o, int l)
5. toShorts(Short[] values)