java不支持无符号整数的替代示例方案

package javatuning.ch2.timespace;

public class UnsignedByte {
	public short getValue(byte i) {
		short li = (short) (i & 0xff);
		return li;
	}

	public byte toUnsignedByte(short i) {
		return (byte) (i & 0xff);
	}

	public static void main(String args[]) {
		UnsignedByte ins = new UnsignedByte();
		short[] shorts=new short[256];
		for(int i=0;i<shorts.length;i++)
			shorts[i]=(short)i;
		byte[] bytes=new byte[256];
		for(int i=0;i<bytes.length;i++)
			bytes[i]=ins.toUnsignedByte(shorts[i]);
		for(int i=0;i<bytes.length;i++)
			System.out.print(ins.getValue(bytes[i])+" ");
	}
}