Java 16进制和int互转
/**
* Java 16进制和int互转
*
* @author www.only-demo.com
*
*/
class IntHexConverterDemo {
public static void main(String[] args) {
//1.无符号整型,
//int转16进制，使用Integer.toHexString(i)转换
int int100 = 100;
System.out.println(Integer.toHexString(int100));//64
int int100_ = -100;
System.out.println(Integer.toHexString(int100_));//ffffff9c
//16进制转int,使用Integer.parseUnsignedInt(s, 16)
System.out.println(Integer.parseUnsignedInt("64", 16));
System.out.println(Integer.parseUnsignedInt("ffffff9c", 16));
//2.有符号整型
//int转16进制，使用Integer.toString(i, 16)转换
System.out.println(Integer.toString(int100, 16));//64
System.out.println(Integer.toString(int100_, 16));//-64
//16进制转int,使用Integer.parseInt(s, 16)
System.out.println(Integer.parseInt("64", 16));//100
System.out.println(Integer.parseInt("-64", 16));//-100
}
}
结果
64
ffffff9c
100
-100
64
-64
100
-100
