Summary of Java's medium-base conversion functions

The following editor will bring you a detailed explanation of the hexadecimal conversion function based on Java. The editor thinks it’s pretty good, so I’ll share it with you now and give it as a reference. Let’s follow the editor and take a look.

Convert decimal to hexadecimal:

Integer.toHexString(int i)

Convert decimal to octal

Integer.toOctalString(int i)

Convert decimal to binary

Integer.toBinaryString(int i)

Convert hexadecimal to decimal

Integer.valueOf("FFFF",16).toString()

Convert octal to decimal

Integer.valueOf("876",8).toString()

Convert binary to decimal

Integer.valueOf("0101",2).toString()

Is there any way to directly convert 2 ,8,16 hexadecimal directly converted to decimal?

java.lang.Integer类 
parseInt(String s, int radix)

Parses the string argument into a signed integer using the base specified by the second argument.

examples from jdk: 
parseInt("0", 10) returns 0 
parseInt("473", 10) returns 473 
parseInt("-0", 10) returns 0 
parseInt("-FF", 16) returns -255 
parseInt("1100110", 2) returns 102 
parseInt("2147483647", 10) returns 2147483647 
parseInt("-2147483648", 10) returns -2147483648 
parseInt("2147483648", 10) throws a NumberFormat
Exception
 
parseInt("Kona", 10) throws a NumberFormatException 
parseInt("Kona", 27) returns 411787

Base conversionHow to write (two, eight, sixteen) without algorithm

Integer.toBinaryString 
Integer.toOctalString 
Integer.toHexString

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