java中int型最大值是多少？ java中的int的取值范围如何计算？？？
java \u4e2dint \u7684\u8303\u56f4int\u7684\u53d6\u503c\u8303\u56f4\u4e3a\uff1a -2^31\u2014\u20142^31-1\uff0c\u5373-2147483648\u2014\u20142147483647
1\u3001\u5bf9\u4e8e\u6b63\u6570\u6765\u8bf4\uff0c\u5b83\u7684\u8865\u7801\u5c31\u662f\u5b83\u672c\u8eab\u3002
2\u3001\u5bf9\u4e8e\u8d1f\u6570\u6765\u8bf4\uff0c\u5b83\u7684\u8865\u7801\u662f\u5b83\u5bf9\u5e94\u7684\u6b63\u6570\u7684\u4e8c\u8fdb\u6570\u6240\u6709\u4f4d\u53d6\u53cd\u4e4b\u540e\u52a0\u4e00\u3002
3\u3001\u7531\u8d1f\u6570\u7684\u8865\u7801\u6c42\u539f\u7801\u4e5f\u662f\u76f8\u540c\u7684\u64cd\u4f5c\uff08\u6240\u6709\u4f4d\u53d6\u53cd+1\uff09\u5373\u4e3a\u8be5\u8d1f\u6570\u7684\u7edd\u5bf9\u503c
int\u662f4\u4e2a\u5b57\u8282\uff0c32\u4f4d\uff0c
10000000 00000000 00000000 00000000 \u662f\u8865\u7801\uff0c\u7b2c\u4e00\u4f4d\u4e3a\u7b26\u53f7\u4f4d\uff0c1\u8868\u793a\u8d1f\u6570\uff0c\u6240\u4ee5
\u5bf9\u5269\u4e0b\u7684\u4f4d\u53d6\u53cd\uff0c\u7ed3\u679c\u4e3a 1111111 11111111 11111111 11111111\uff0c\u52a0\u4e00\u540e\u4e3a10000000 00000000 00000000 00000000
4\u3001\u6240\u4ee5\u539f\u7801\u6307\u7684\u662f-2^31=-2147483648
int\u7684\u53d6\u503c\u8303\u56f4\u4e3a-2^31\u2014\u20142^31-1
\u6269\u5c55\u8d44\u6599
int\u662f\u4e00\u4e2a\u5411CPU\u53d1\u9001\u4e2d\u65ad\u7684\u6307\u4ee4\u3002
\u683c\u5f0f\u4e3aINT vec\u3002
vec\u4e3a\u4e2d\u65ad\u5411\u91cf\u53f7\uff0c\u5176\u503c\u4e3a0~255\u3002CPU\u6839\u636e\u8fd9\u4e2a\u5411\u91cf\u53f7\u53bb\u8c03\u7528\u5185\u6838\u5bf9\u5e94\u7684\u4e2d\u65ad\u4f8b\u7a0b\u3002\u6307\u4ee4\u64cd\u4f5c\u4e3a\uff1a
\uff08SP\uff09\u2190(SP\uff09-2\uff0c\uff08\uff08SP\uff09+1\uff1a\uff08SP\uff09\uff09\u2190\uff08FR\uff09
\uff08IF\uff09\u21900\uff0c\uff08TF\uff09\u21900
\uff08SP\uff09\u2190(SP\uff09-2\uff0c\uff08\uff08SP\uff09+1\uff1a\uff08SP\uff09\uff09\u2190\uff08CS\uff09
\uff08SP\uff09\u2190(SP\uff09-2\uff0c\uff08\uff08SP\uff09+1\uff1a\uff08SP\uff09\uff09\u2190\uff08IP\uff09
\uff08CS\uff09\u2190\uff08vec*4+2\uff09\uff0c\uff08IP\uff09\u2190\uff08vec*4\uff09
\u53c2\u8003\u8d44\u6599
\u767e\u5ea6\u767e\u79d1-int
int\u7684\u53d6\u503c\u8303\u56f4\uff1a (-2147483648 ~ 2147483647)\u3002
\u7b2c\u4e00\u79cd\u63a8\u7b97\u6cd5\uff1a\u5c06\u4e8c\u8fdb\u5236\u6700\u5927\u7684\u6570\u5b57\uff0832\u4e2a1\uff09\u8f6c\u6362\u621010\u8fdb\u5236\uff0c\u5373 4294967296\uff1b
\u7b2c\u4e8c\u79cd\u63a8\u7b97\u6cd5\uff1a\u65e2\u7136\u67092\u768432\u6b21\u65b9\u79cd\u7b97\u6cd5\uff0c\u90a3\u4e48\u6309\u716710\u8fdb\u5236\u6700\u5927\u7684\u6570\u5c31\u662f2\u768432\u6b21\u65b9\uff0c\u53734294967296\uff1b
\u62d3\u5c55\u8d44\u6599\uff1a
int \u662f\u6574\u578b\uff0c\u5bf9\u5e94\u6211\u4eec\u6570\u5b66\u4e0a\u8ba4\u8bc6\u7684\u6570\u503c\u4e3a\u6574\u6570\uff0c\u5c31\u662f\u6ca1\u6709\u5c0f\u6570\u70b9\u7684\u6570\u3002
\u5728\u8ba1\u7b97\u673a\u7cfb\u7edf\u4e2d\uff0c\u6211\u4eec\u4e3a\u8fd9\u79cd\u7c7b\u578b\u7684\u6570\u5b9a\u4e86\u4e00\u4e2a\u8303\u56f4\uff0c\u4e3a\u4ec0\u4e48\u8981\u6709\u8fd9\u4e2a\u8303\u56f4\u7684\u9650\u5236\u5462\uff0c\u8fd9\u662f\u4e3a\u4e86\u7269\u5c3d\u6240\u7528\uff0c\u4e0d\u80fd\u6d6a\u8d39\u3002\u6253\u4e2a\u6bd4\u65b9\uff0c\u6211\u8981\u5f00\u4e00\u5757\u5730\uff08\u5728\u5b58\u50a8\u7a7a\u95f4\u4e2d\u5f00\u8f9f\u4e00\u5757\u7a7a\u95f4\uff09\uff0c\u4e3a\u4e86\u79cd\u83dc\uff08\u4e3a\u4e86\u5b58\u50a8\u4e00\u4e2a\u6570\uff09\uff0c
\u7a7a\u95f4\u5f00\u597d\u540e\uff0c\u6211\u5f80\u8fd9\u5757\u5730\u4e0a\u79cd\u4e86\u4e00\u68f5\u83dc\uff08\u653e\u5165\u6570\u503c1\uff09\uff0c\u5982\u679c\u8fd9\u5757\u5730\u53ea\u6709\u4e00\u5e73\u7c73\uff0c\u90a3\u8fd8\u597d\uff0c\u5982\u679c\u8fd9\u5757\u5730\u8981\u662f\u4e00\u9877\uff0c\u90a3\u4f60\u5c31\u662f\u8d25\u5bb6\u4ed4\u4e86\u3002
\u8ba1\u7b97\u673a\u91cc\u5f00\u8f9f\u7a7a\u95f4\u603b\u5f97\u7ed9\u5b83\u6307\u5b9a\u4e00\u4e2a\u503c\u561b\uff0c\u603b\u4e0d\u80fd\u8ba9\u5b83\u968f\u673a\u5f00\u8f9f\u5427\uff1b\u5982\u679c\u4ece\u5934\u5230\u5c3e\u53ea\u6307\u5b9a\u4e00\u4e2a\u503c\uff0c\u90a3\u5c31\u4e00\u68d2\u5b50\u6253\u6b7b\u4eba\uff0c\u9b3c\u77e5\u9053\u4ec0\u4e48\u65f6\u5019\u4f1a\u4e0d\u591f\u7528\u6216\u662f\u6709\u6d6a\u8d39\u554a\uff0c
\u6240\u4ee5\u8981\u4e3a\u4f60\u8981\u5b58\u7684\u4e1c\u897f\u6307\u5b9a\u4e00\u4e2a\u8303\u56f4\uff0c\u597d\u8ba9\u8ba1\u7b97\u673a\u77e5\u9053\u8981\u5f00\u591a\u5927\u7684\u7a7a\u95f4\u3002\u6240\u4ee5\u624d\u6709\u8fd9\u6574\u578b\u8fd9\u79cd\u5206\u7c7b\u578b\u7684\u4e1c\u897f\u3002
\u53c2\u8003\u8d44\u6599\uff1aint\u6570\u636e\u7c7b\u578b_\u767e\u5ea6\u767e\u79d1
System.out.println(Integer.MAX_VALUE);
:-2147483648 到2147483648
32位的带符号的
无符号的是0-2*2147483648
system.out.println(Integer.max_value);
-2^31 到2^31 - 1
0 到 2^32 - 1
绛旓細byte锛歜yte鏁版嵁绫诲瀷鏄8浣嶃佹湁绗﹀彿鐨勶紝浠ヤ簩杩涘埗琛ョ爜琛ㄧず鐨勬暣鏁帮紱鏈灏忓兼槸-128锛-2^7锛夛紱鏈澶у兼槸127锛2^7-1锛夛紱榛樿鍊兼槸0锛沚yte绫诲瀷鐢ㄥ湪澶у瀷鏁扮粍涓妭绾︾┖闂达紝涓昏浠ｆ浛鏁存暟锛屽洜涓篵yte鍙橀噺鍗犵敤鐨勭┖闂村彧鏈int绫诲瀷鐨鍥涘垎涔嬩竴锛涗緥瀛愶細byte a = 100锛宐yte b = -50銆俿hort锛歴hort鏁版嵁绫诲瀷鏄16浣嶃佹湁...
绛旓細32浣嶇殑鏈哄櫒涓婏紝鏈澶у兼槸锛2,147,483,647
绛旓細+max);isOuShu(max);}private static void isOuShu(int num) {if(num%2==0){ //鏄惁鑳借2鏁撮櫎System.out.println(num+"鏄伓鏁");}else{System.out.println(num+"涓嶆槸鍋舵暟");}}}杈撳嚭 int绫诲瀷鐨勬渶灏忓兼槸-2147483648-2147483648鏄伓鏁int绫诲瀷鐨勬渶澶у兼槸21474836472147483647涓嶆槸鍋舵暟 ...
绛旓細JAVA鍥涚鏁存暟鏁版嵁绫诲瀷鐨鍙栧艰寖鍥村垎鍒槸锛氳繖鍥涚鏁存暟鏁版嵁鍒嗗埆鍗犵殑鍐呭瓨鏄細鏁存暟鍨嬬敤鏉ュ瓨鍌ㄦ暣鏁版暟鍊硷紝鍗虫病鏈夊皬鏁伴儴鍒嗙殑鏁板笺傚彲浠ユ槸姝ｆ暟锛屼篃鍙互鏄礋鏁般
绛旓細浣犵敤sizeof(int)鐪嬪畠鍗犱簡鍑犱釜瀛楄妭 32浣嶆満涓婏紝杩欎釜鍊兼槸32锛2鐨32娆℃柟=4294967296锛堟棤绗﹀彿锛夛紝甯︾鍙峰啀闄や互2锛岃礋鏁版瘮姝ｆ暟澶氫竴涓紝-2147483648~+2147483647
绛旓細int鍨嬩负鏈夌鍙32浣嶆暣鏁帮紝鍗4涓瓧鑺傦紝鍙栧艰寖鍥村湪-2,147,483,648~2,147,483,647涔嬮棿銆傛敞鎰忥細int鍗犲灏戜釜瀛楄妭鏄敱缂栬瘧鍣ㄥ喅瀹氱殑锛孉NSI鏍囧噯瀹氫箟int鏄崰2涓瓧鑺傦紟uint鍨嬩负鏃犵鍙32浣嶆暣鏁帮紝鍗4涓瓧鑺傦紝鍙栧艰寖鍥村湪0~4,294,967,295涔嬮棿銆侭OOL鍨嬩负int鍨锛屼竴鑸涓哄崰4涓瓧鑺傦紝鍙栧糡RUE/FALSE/ERROR銆
绛旓細java鏁村瀷鏈夊洓绉嶅垎璐濇槸锛歜yte(1瀛楄妭)銆乻hort(2瀛楄妭)銆乮nt(4瀛楄妭)銆乴ong(8瀛楄妭锛0x100080000000瓒呭嚭鑼冨洿锛屽叾瀹炰笉鏄痩ong涓嶈兘淇濆瓨杩欎箞澶э紝鑰屾槸杩欎釜鏁版槸涓int鍨鏁般傚畠瓒呭嚭鐨勫叾瀹炴槸int鐨勮寖鍥达紙The literal 0x100080000000 of type int is out of range锛夛紝鍦ㄦ暣鏁拌祴鍊兼椂銆傚彲浠ュ皢璧嬪艰瑷淇敼濡備笅锛屾寚瀹氬畠鐨...
绛旓細鍙互鐪嬪埌byte鍜宻hort鐨勫彇鍊艰寖鍥存瘮杈冨皬锛岃宭ong鐨勫彇鍊艰寖鍥村お澶э紝鍗犵敤鐨勭┖闂村锛屽熀鏈笂int鍙互婊¤冻鎴戜滑鐨勬棩甯哥殑璁＄畻浜嗭紝鑰屼笖int涔熸槸浣跨敤鐨勬渶澶氱殑鏁村瀷绫诲瀷浜嗐傚湪閫氬父鎯呭喌涓嬶紝濡傛灉JAVA涓鍑虹幇浜嗕竴涓暣鏁版暟瀛楁瘮濡35锛岄偅涔堣繖涓暟瀛楀氨鏄int鍨鐨勶紝濡傛灉鎴戜滑甯屾湜瀹冩槸byte鍨嬬殑锛屽彲浠ュ湪鏁版嵁鍚庡姞涓婂ぇ鍐欑殑 B锛35B锛岃〃绀哄畠...
绛旓細C璇█涓璱nt鍒嗕负鏃犵鍙峰拰鏈夌鍙蜂袱绉嶏紝鏃犵鍙峰氨鏄彧琛ㄧず闈炶礋鏁存暟锛屼竴鑸幇鍦32浣嶆満鍣ㄤ腑锛宨nt浣跨敤32浣嶄簩杩涘埗琛ㄧず锛鏈澶灏辨槸32涓1锛屽嵆2鐨32娆℃柟鍑1锛屾槸40澶氫嚎銆傚浜庢湁绗﹀彿鏁存暟锛Java涓涓嶅瓨鍦ㄦ湁鏃犵鍙蜂竴璇达紝鎵浠ラ兘鐪嬩綔鏄湁绗﹀彿鐨勶級锛岃捣濮嬩负1琛ㄧず璐熸暟锛屾墍浠ユ渶澶х殑鏁板彧鑳芥槸浠0寮濮嬶紝鍚庤竟31涓1锛屽嵆2鐨...
绛旓細public class Max { public static void main(String[] args) { int[] y= {0,9,4,8,2,12,444,5,-1,-22,45};System.out.println(m(y));System.out.println(mm(y));System.out.println(sum(y));} public static int m(int[] p){ int max=0;for (int i=0;i=max){ max=...
