使用java，如何将十六进制数D6CD2F01转换为十进制数19910102？ java怎么把16进制的数转换为10进制的
\u7528Java\u7f16\u5199\u5c06\u5341\u516d\u8fdb\u5236\u6570\u8f6c\u6362\u4e3a\u5341\u8fdb\u5236\u6570\u7684\u65b9\u6cd5\uff01\uff01\uff01\uff01\u6025\u6c42\u7b54\u6848\uff01\uff01\uff01simpledateformat
sdf
=
new
simpledateformat("yyyy-mm-dd
hh:dd:mm");
system.out.println(sdf.format(new
date()));
\u8fd9\u4e2a\u662f\u5c06\u5f53\u524d\u65f6\u95f4\u7684\u683c\u5f0f\u6539\u4e3ayyyy-mm-dd
hh:dd:mm\u7684\uff0c\u663e\u793a\u7684\u662f24\u5c0f\u65f6\u5236\uff0c\u4e0d\u77e5\u9053\u4f60\u8bf4\u7684\u662f\u4e0d\u662f\u8fd9\u4e2a
\u4f7f\u7528java.math.BigInteger
\u6784\u9020\u51fd\u6570BigInteger(String val, int radix) \uff1a \u5c06\u6307\u5b9a\u57fa\u6570\u7684 BigInteger \u7684\u5b57\u7b26\u4e32\u8868\u793a\u5f62\u5f0f\u8f6c\u6362\u4e3a BigInteger\u3002
new BigInteger("01040000000100000001010000005B94D910DE8F1E41ED66466", 16).toString()\u5373\u53ef
import java.util.Scanner;
public class test2{
public static void main(String [] args){
Scanner cin=new Scanner(System.in);
String num1="D6CD2F01";//"D6CD2F01";
//long n=Long.parseLong(num1,16);//由16进制转化为10进制(两个都行，1：返回long；2:返回Long)
long n=Long.valueOf(num1,16);
System.out.print(n);
/*
D6CD2F01的十进制数已经超过int的范围了
3603771137
*/
}
}
十六进制数D6CD2F01转换为十进制数可不是19910102啊！
（D6CD2F01）16=3603771137
public class HexToDecimalExample3{
public static int getDecimal(String hex){
String digits = "0123456789ABCDEF";
hex = hex.toUpperCase();
int val = 0;
for (int i = 0; i < hex.length(); i++)
{
char c = hex.charAt(i);
int d = digits.indexOf(c);
val = 16*val + d;
}
return val;
}
public static void main(String args[]){
System.out.println("Decimal of a is: "+getDecimal("D6CD2F01"));
}}
绛旓細鏁拌繕鏄10杩涘埗鏁帮紝閮芥湁鍙兘銆 鎵浠ヨ瀹氾紝涓涓暟濡傛灉瑕佹寚鏄庡畠閲囩敤鍏繘鍒讹紝蹇呴』鍦ㄥ畠鍓嶉潰 涓婁竴涓0锛屽锛123鏄崄杩涘埗锛屼絾0123鍒欒〃绀洪噰鐢ㄥ叓杩涘埗銆傝繖灏辨槸鍏繘鍒舵暟鐨勮〃杈炬柟娉曘 2銆鍗佸叚杩涘埗鏁鐨勮〃杈炬柟娉 锛氬鏋滀笉浣跨敤鐗规畩鐨勪功鍐欏舰寮锛16杩涘埗鏁涔熶細鍜10杩涘埗鐩告贩銆傞殢渚夸竴涓暟锛9876锛屽氨鐪嬩笉鍑哄畠鏄...
绛旓細for(int i=0;i<100;i++){ System.out.println(Integer.toHexString(i));}//Integer.toHexString(int); 浠鍗佸叚杩涘埗锛堝熀鏁 16锛夋棤绗﹀彿鏁存暟褰㈠紡杩斿洖涓涓暣鏁板弬鏁扮殑瀛楃涓茶〃绀哄舰寮忋
绛旓細浣犻渶瑕浣跨敤long鏉ュ瓨鍌ㄨ繖涓硷紝long鍦╦ava閲屾槸64浣鏁存暟锛宩ava纭疄涓嶆敮鎸佹棤绗﹀彿鏁版嵁銆
绛旓細import java.nio.ByteBuffer;public class aa { public static void main(String []args){ String str= "0xFA";// 鍒涘缓涓涓ぇ灏忎负str.length()鐨勫瓧鑺傜紦鍐插尯 ByteBuffer bytebuffer=ByteBuffer.allocate(str.length());// 鍦ㄨ繖涓瓧鑺傜紦鍐插尯涓斁鍏ユ垜浠寚瀹氱殑 瀛楃鐨勫瓧鑺傛暟缁,寰楀埌琛ㄧず鎸囧畾瀛楃鐨...
绛旓細璇诲彇鍚,涓や釜瀛楃杞竴娆′簩杩涘埗瀛楃涓茬劧鍚庣敓鎴愪竴涓簩杩涘埗鐨勫瓧绗︿覆,涓娆″彇24浣嶅瓧绗 ,鐒跺悗鍙栫13涓瓧绗﹀埌绗16涓瓧绗﹀己杞负鍗佸叚杩涘埗鐨勫瓧绗︿覆 鐒跺悗+绗1涓嚦绗8涓瓧绗﹀己杞负鍗佸叚杩涘埗鐨勫瓧绗︿覆 缁勬垚淇″彿0鐨鏁板瓧,鍐欏埌鏂囦欢鎴栬呭埆鐨勫湴鏂,淇″彿1鍚岀悊鍙浆.鎰熻鏈夌偣浣庣,涓嶇煡鍙湁鍒殑绮惧鍋氭硶 ...
绛旓細鍦ㄧ煡閬撴祦闀垮害鐨勬儏鍐典笅灏嗚緭鍏ユ祦杞崲鎴愬瓧鑺傛暟缁 Java涓鐨勮緭鍏ユ祦鎶借薄绫籌nputStream鏈塱nt read(byte[] b, int off, int len)鏂规硶锛屽弬鏁颁腑byte[] b鏄敤鏉ュ瓨鏀句粠InputStream涓鍙栫殑鏁版嵁,int off鎸囧畾鏁扮粍b鐨勫亸绉诲湴鍧锛屼篃灏辨槸鏁扮粍b鐨勮捣濮嬩笅鏍囷紝int len鎸囧畾闇瑕佽鍙栫殑闀垮害锛屾柟娉曡繑鍥炲疄闄呰鍙栫殑瀛楄妭鏁般備笅闈㈢殑...
绛旓細public class 鍗佸叚杞10 {//琛ョ爜婧愮爜杩欎簺涓滆タ鍙彂鐢熷湪浜杩涘埗閲岄潰,涓嶈娣锋穯!public static void main(String[] args) {String s1="a",s2="b",s3="3c";//鏂规硶1:int a1=Integer.parseInt(s1,16);int a2=Integer.parseInt(s2,16);int a3=Integer.parseInt(s3,16);//鏂规硶2:int b1=Integer....
绛旓細/ 姣旇緝鍘熷鐨勬柟妗堬紝鍙緵瀛︿範鍘熺悊 / import java.util.Scanner;/ author Administrator / public class Test_math { public static void main(String args[]) { Scanner in =new Scanner(System.in);int m,n;//m杩涘埗杞琻杩涘埗 System.out.println("杈撳叆鍘熷鏁版嵁杩涘埗锛");m=in.nextInt();System....
绛旓細Scanner console =new Scanner(System.in);System.out.print("杈撳叆涓涓16杩涘埗鐨凴GB棰滆壊锛");String strRGB = console.next();int RGB = Integer.valueOf(strRGB, 16);System.out.println(RGB);浣犺鏄緭鍏ョ殑鏁颁笉鏄鍗佸叚杩涘埗鐨勫氨浼氶敊鍝,鎴戣繖鍎挎病鏈夊姞楠岃瘉涔嬬被鐨......
绛旓細char x = '鎴';String str = "鎴";byte[] bytes = str.getBytes(); //鎴戞兂涓嶆槑鐧斤紝涓轰粈涔堣繖閲岃鍗犵敤3涓猙yte鍛? 3涓猙yte涓鍏辨槸3*8=24浣嶏紱閭ｄ箞char x 鎬庝箞鍙堟斁寰椾笅锛熷洜涓篶har鏄16浣嶇殑鍟婏紵锛熷師鍥狅細byte[] bytes = str.getBytes();涔嬪悗鏄3涓瓧鑺傦紝杩欓噷鍜屽墠闈㈢殑姒傚康涓嶄竴鏍枫java鏄鐢...
