Java math BigDecimal toPlainString()

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Java.math.BigDecimal.toPlainString()

java.math.BigDecimal.toPlainString() 返回此BigDecimal的字符串表示形式不帶指數字段。
為具有正的精度值，中位數的小數點右邊的數字用於指示精度。

method 宣告

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public String toPlainString()

BigDecimal.toPlainString() Example

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public class BigDecimalDemo {

     public static void main(String[] args) {

        // create a BigDecimal object
        BigDecimal bg;

        // create a String object
        String s;

		MathContext mc = new MathContext(3); // 3 precision

        bg = new BigDecimal("1234E+4",mc);

        // assign the plain string value of bg to s
        s = bg.toPlainString();

		String str = "Plain string value of " + bg + " is " + s;

        // print s value
        System.out.println( str );
    }
}

Output

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Plain string value of 1.23E+7 is 12300000