java 进制转换实例详解

//java.lang.Integer类     parseInt(String s, int radix)       //使用第二个参数指定的基数，将字符串参数解析为有符号的整数。       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 NumberFormatException       parseInt("99",throws a NumberFormatException       parseInt("Kona", 10) throws a NumberFormatException       parseInt("Kona", 27) returns 411787    

Integer.toBinaryString       Integer.toOctalString       Integer.toHexString    

public class Test{       public static void main(String args[]){             int i=100;       String binStr=Integer.toBinaryString(i);       String otcStr=Integer.toOctalString(i);       String hexStr=Integer.toHexString(i);       System.out.println(binStr);             }    

public class TestStringFormat {       public static void main(String[] args) {       if (args.length == 0) {       System.out.println("usage: java TestStringFormat <a number>");       System.exit(0);       }             Integer factor = Integer.valueOf(args[0]);             String s;             s = String.format("%d", factor);       System.out.println(s);       s = String.format("%x", factor);       System.out.println(s);       s = String.format("%o", factor);       System.out.println(s);       }       }    

     Integer.toHexString(你的10进制数);    

String temp = Integer.toHexString(75);    

   //输入一个10进制数字并把它转换成16进制       import java.io.*;       public class toHex{             public static void main(String[]args){             int input;//存放输入数据       //创建输入字符串的实例       BufferedReader strin=new BufferedReader(new InputStreamReader(System.in));       System.out.println("请输入一个的整数：");       String x=null;       try{       x=strin.readLine();       }catch(IOException ex){       ex.printStackTrace();       }       input=Integer.parseInt(x);       System.out.println ("你输入的数字是："+input);//输出从键盘接收到的数字             System.out.println ("它的16进制是："+Integer.toHexString(input));//用toHexString把10进制转换成16进制       }       }