40 lines
1.2 KiB
Java
40 lines
1.2 KiB
Java
package Course_Codes;
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import java.math.BigInteger;
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public class 大数 {
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public static void main(String[] args) {
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String num="FF";//num当作16进制，那么对应的就是10进制的255
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System.out.println(BigInteger.ONE);
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BigInteger a=new BigInteger("9527");
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System.out.println("a:"+a);
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//将num转化为二进制
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BigInteger b=new BigInteger(num,16);
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System.out.println("b的十六进制为："+b);
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//将b转化为八进制
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System.out.println("b的八进制为："+b.toString(8));
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//将b转化为二进制
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System.out.println("b的二进制为："+b.toString(2));
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//a+b a.add(b)=9527+255
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System.out.println("a+b="+a.add(b));
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//a-b a.subtract(b)=9527-255 a的值没有变
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System.out.println("a-b="+a.subtract(b));
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//a*b
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System.out.println("a*b="+a.multiply(b));
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//a/b
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System.out.println("a/b="+a.divide(b));
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//a%b
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System.out.println("a%b="+a.mod(b));
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//a b的最大公约数
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System.out.println("a b的最大公约数："+a.gcd(b));
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//判断a是否为素数
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System.out.println("a是否为素数："+a.isProbablePrime(10));
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//a^b%p
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BigInteger two=new BigInteger("2");
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//10^2%13=9
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System.out.println("10^2%13="+BigInteger.TEN.modPow(two, new BigInteger("13")));
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}
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}
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