59 lines
1.2 KiB
Java
59 lines
1.2 KiB
Java
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public class ArrayUtils
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{
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public static boolean arrayIsPartOfOtherArrayOnOffset(byte[] src, byte[] part, int offset)
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{
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if(offset<0 || part.length+offset > src.length) return false;
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for(int i=0; i<part.length; i++)
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{
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if(part[i] != src[i+offset]) return false;
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}
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return true;
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}
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public static char[] bytesToChars(byte[] b)
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{
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char[] c = new char[b.length];
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for(int i=0; i<b.length; i++)
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c[i] = (char) b[i];
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return c;
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}
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public static byte[] charsToBytes(char[] c)
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{
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byte[] b = new byte[c.length];
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for(int i=0; i<c.length; i++)
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b[i] = (byte) c[i];
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return b;
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}
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public static byte[] concatenate (byte[] out, byte[] bs) {
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if(out == null) return bs;
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if(bs == null) return out;
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int aLen = out.length;
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int bLen = bs.length;
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byte[] c = new byte[aLen+bLen];
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System.arraycopy(out, 0, c, 0, aLen);
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System.arraycopy(bs, 0, c, aLen, bLen);
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return c;
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}
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public static final byte[] intToByteArray(int value) {
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return new byte[] {
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(byte)(value >>> 24),
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(byte)(value >>> 16),
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(byte)(value >>> 8),
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(byte)value};
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}
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public static byte[] unsign(byte[] b)
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{
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byte[] u = new byte[b.length];
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for(int i=0; i<b.length; i++)
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u[i] = (byte) (b[i]&0xFF);
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return u;
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}
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}
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