java大数据转换16进制转10进制

最新推荐文章于 2023-06-07 14:07:27 发布

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最新推荐文章于 2023-06-07 14:07:27 发布

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文章标签： java 大数据 python

原文链接：https://my.oschina.net/renliangrong/blog/1929893

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2019独角兽企业重金招聘Python工程师标准>>>

    public static void main(String[] args) {
		String hex = "0xdbf3accc683297cf0000";
		BigInteger amount = new BigInteger(hex.substring(2), 16);
		System.out.println(amount);
	}

	public static void main(String[] args) {
		int precision = 18; // 18位小数
		String hex = "0x117067e8822a";
		BigDecimal decimal = new BigDecimal(new BigInteger(hex.substring(2), 16));
		BigDecimal precisionDecimal = new BigDecimal(10).pow(precision);
		BigDecimal value = decimal.divide(precisionDecimal).setScale(precision, RoundingMode.DOWN);
		System.out.println(value.toString());
	}

    public static void main(String[] args) {
		int precision = 18; // 18位小数
		String hex = "0x000000000000000000000000000000000000000000000000a688906bd8b00000";
		BigDecimal decimal = new BigDecimal(new BigInteger(hex.substring(2), 16));
		BigDecimal precisionDecimal = new BigDecimal(10).pow(precision);
		BigDecimal value = decimal.divide(precisionDecimal).setScale(precision, RoundingMode.DOWN);
		
		System.out.println(value.toString());

		String toHex = String.format("%#x %n", value.multiply(precisionDecimal).toBigInteger());
		System.out.println(toHex);

	}

public static void main(String[] args) {
		int precision = 18; // 18位小数
		String hex = "0x000000000000000000000000000000000000000000000000a688906bd8b00000";
		BigDecimal decimal = new BigDecimal(new BigInteger(hex.substring(2), 16));
		BigDecimal precisionDecimal = new BigDecimal(10).pow(precision);
		BigDecimal value = decimal.divide(precisionDecimal).setScale(precision, RoundingMode.DOWN);

		System.out.println(value.toString());
		BigInteger toBigInt = value.multiply(precisionDecimal).toBigInteger();
		String noZeroHex = value.multiply(precisionDecimal).toBigInteger().toString(16);

		String zeroNumber = String.format("0%sd", 64 - noZeroHex.length());
		String zero = String.format("%" + zeroNumber, 0);
		String toHex = String.format("0x%s%s", zero, noZeroHex);
		System.out.println(toHex);

		System.out.println("0x000000000000000000000000000000000000000000000000a688906bd8b00000".length());
		System.out.println("0x000000000000000000000000000000000000000000000000a688906bd8b00000".length());

	}

转载于:https://my.oschina.net/renliangrong/blog/1929893