public void test() {
	FileInputStream fin = new FileInputStream(fps[i]); 

	byte[] BOM = new byte[4]; 
	fin.read(BOM, 0, 4); 
	String encoding = getEncodingType(BOM);
}

public String getEncodingType(byte[] BOM) { 

	if( (BOM[0] & 0xFF) == 0xEF && (BOM[1] & 0xFF) == 0xBB && (BOM[2] & 0xFF) == 0xBF ) 
		return ("UTF-8"); 
	else if( (BOM[0] & 0xFF) == 0xFE && (BOM[1] & 0xFF) == 0xFF ) 
		return("UTF-16BE"); 
	else if( (BOM[0] & 0xFF) == 0xFF && (BOM[1] & 0xFF) == 0xFE ) 
		return ("UTF-16LE"); 
	else if( (BOM[0] & 0xFF) == 0x00 && (BOM[1] & 0xFF) == 0x00 && (BOM[0] & 0xFF) == 0xFE && (BOM[1] & 0xFF) == 0xFF ) 
		return ("UTF-32BE"); 
	else if( (BOM[0] & 0xFF) == 0xFF && (BOM[1] & 0xFF) == 0xFE && (BOM[0] & 0xFF) == 0x00 && (BOM[1] & 0xFF) == 0x00 ) 
		return ("UTF-32LE"); 
	else 
		return ("EUC-KR"); 
}