java字符串与二进制的转换

 

public class StrBinaryTurn {
	// 将Unicode字符串转换成bool型数组
	public boolean[] StrToBool(String input) {
		boolean[] output = Binstr16ToBool(BinstrToBinstr16(StrToBinstr(input)));
		return output;
	}

	// 将bool型数组转换成Unicode字符串
	public String BoolToStr(boolean[] input) {
		String output = BinstrToStr(Binstr16ToBinstr(BoolToBinstr16(input)));
		return output;
	}

	// 将字符串转换成二进制字符串，以空格相隔
	private String StrToBinstr(String str) {
		char[] strChar = str.toCharArray();
		String result = "";
		for (int i = 0; i < strChar.length; i++) {
			result += Integer.toBinaryString(strChar[i]) + " ";
		}
		return result;
	}

	// 将二进制字符串转换成Unicode字符串
	private String BinstrToStr(String binStr) {
		String[] tempStr = StrToStrArray(binStr);
		char[] tempChar = new char[tempStr.length];
		for (int i = 0; i < tempStr.length; i++) {
			tempChar[i] = BinstrToChar(tempStr[i]);
		}
		return String.valueOf(tempChar);
	}

	// 将二进制字符串格式化成全16位带空格的Binstr
	private String BinstrToBinstr16(String input) {
		StringBuffer output = new StringBuffer();
		String[] tempStr = StrToStrArray(input);
		for (int i = 0; i < tempStr.length; i++) {
			for (int j = 16 - tempStr[i].length(); j > 0; j--)
				output.append('0');
			output.append(tempStr[i] + " ");
		}
		return output.toString();
	}

	// 将全16位带空格的Binstr转化成去0前缀的带空格Binstr
	private String Binstr16ToBinstr(String input) {
		StringBuffer output = new StringBuffer();
		String[] tempStr = StrToStrArray(input);
		for (int i = 0; i < tempStr.length; i++) {
			for (int j = 0; j < 16; j++) {
				if (tempStr[i].charAt(j) == '1') {
					output.append(tempStr[i].substring(j) + " ");
					break;
				}
				if (j == 15 && tempStr[i].charAt(j) == '0')
					output.append("0" + " ");
			}
		}
		return output.toString();
	}

	// 二进制字串转化为boolean型数组 输入16位有空格的Binstr
	private boolean[] Binstr16ToBool(String input) {
		String[] tempStr = StrToStrArray(input);
		boolean[] output = new boolean[tempStr.length * 16];
		for (int i = 0, j = 0; i < input.length(); i++, j++)
			if (input.charAt(i) == '1')
				output[j] = true;
			else if (input.charAt(i) == '0')
				output[j] = false;
			else
				j--;
		return output;
	}

	// boolean型数组转化为二进制字串 返回带0前缀16位有空格的Binstr
	private String BoolToBinstr16(boolean[] input) {
		StringBuffer output = new StringBuffer();
		for (int i = 0; i < input.length; i++) {
			if (input[i])
				output.append('1');
			else
				output.append('0');
			if ((i + 1) % 16 == 0)
				output.append(' ');
		}
		output.append(' ');
		return output.toString();
	}

	// 将二进制字符串转换为char
	private char BinstrToChar(String binStr) {
		int[] temp = BinstrToIntArray(binStr);
		int sum = 0;
		for (int i = 0; i < temp.length; i++) {
			sum += temp[temp.length - 1 - i] << i;
		}
		return (char) sum;
	}

	// 将初始二进制字符串转换成字符串数组，以空格相隔
	private String[] StrToStrArray(String str) {
		return str.split(" ");
	}

	// 将二进制字符串转换成int数组
	private int[] BinstrToIntArray(String binStr) {
		char[] temp = binStr.toCharArray();
		int[] result = new int[temp.length];
		for (int i = 0; i < temp.length; i++) {
			result[i] = temp[i] - 48;
		}
		return result;
	}

}