java开发中如何把字符串中的相同字符替换为不同的字符或字符串？ 请问java怎么把一个字符串中的字符替换成别的字符
java\u4e2d\u600e\u4e48\u8fdb\u884c\u5b57\u7b26\u4e32\u66ff\u6362\uff1f\u4f7f\u7528replace\u65b9\u6cd5
\u8be5\u65b9\u6cd5\u7684\u4f5c\u7528\u662f\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u6240\u6709\u6307\u5b9a\u7684\u5b57\u7b26\uff0c\u7136\u540e\u751f\u6210\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\uff0c\u4f8b\u5982\uff1a
String s = \u201cabcat\u201d\uff1b
String s1 = s.replace\uff08\u2018a\u2019\uff0c\u20181\u2019\uff09\uff1b
\u8be5\u4ee3\u7801\u7684\u4f5c\u7528\u662f\u5c06\u5b57\u7b26\u4e32s\u4e2d\u6240\u6709\u7684\u5b57\u7b26a\u66ff\u6362\u6210\u5b57\u7b261\uff0c\u751f\u6210\u7684\u65b0\u5b57\u7b26\u4e32s1\u7684\u503c\u662f\u201c1bc1t\u201d\uff0c\u800c\u5b57\u7b26\u4e32s\u7684\u5185\u5bb9\u4e0d\u53d1\u751f\u6539\u53d8\u3002\u5982\u679c\u9700\u8981\u5c06\u5b57\u7b26\u4e32\u4e2d\u67d0\u4e2a\u6307\u5b9a\u7684\u5b57\u7b26\u4e32\u66ff\u6362\u4e3a\u5176\u5b83\u5b57\u7b26\u4e32\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528replaceAll\u65b9\u6cd5\uff0c\u4f8b\u5982\uff1a
String s = \u201cabatbac\u201d\uff1b
String s1 = s.replaceAll\uff08\u201cba\u201d\uff0c\u201c12\u201d\uff09\uff1b
\u8be5\u4ee3\u7801\u7684\u4f5c\u7528\u662f\u5c06\u5b57\u7b26\u4e32s\u4e2d\u6240\u6709\u7684\u5b57\u7b26\u4e32\u201cab\u201d\u66ff\u6362\u4e3a\u201c12\u201d\uff0c\u751f\u6210\u65b0\u7684\u5b57\u7b26\u4e32\u201ca12t12c\u201d\uff0c\u800c\u5b57\u7b26\u4e32s\u7684\u5185\u5bb9\u4e5f\u4e0d\u53d1\u751f\u6539\u53d8\u3002
\u5b57\u7b26\u4e32\u5728\u5b58\u50a8\u4e0a\u7c7b\u4f3c\u5b57\u7b26\u6570\u7ec4
\u5b83\u6bcf\u4e00\u4f4d\u5355\u4e2a\u5143\u7d20\u90fd\u662f\u80fd\u63d0\u53d6\u7684\uff0c\u5b57\u7b26\u4e32\u7684\u96f6\u4f4d\u662f\u5b83\u7684\u957f\u5ea6\uff0c\u5982s[0]=10\uff0c\u8fd9\u63d0\u4f9b\u7ed9\u6211\u4eec\u5f88\u591a\u65b9\u4fbf\uff0c\u4f8b\u5982\u9ad8\u7cbe\u5ea6\u8fd0\u7b97\u65f6\u6bcf\u4e00\u4f4d\u90fd\u80fd\u8f6c\u5316\u4e3a\u6570\u5b57\u5b58\u5165\u6570\u7ec4\u3002
\u901a\u5e38\u4ee5\u4e32\u7684\u6574\u4f53\u4f5c\u4e3a\u64cd\u4f5c\u5bf9\u8c61\uff0c\u5982\uff1a\u5728\u4e32\u4e2d\u67e5\u627e\u67d0\u4e2a\u5b50\u4e32\u3001\u6c42\u53d6\u4e00\u4e2a\u5b50\u4e32\u3001\u5728\u4e32\u7684\u67d0\u4e2a\u4f4d\u7f6e\u4e0a\u63d2\u5165\u4e00\u4e2a\u5b50\u4e32\u4ee5\u53ca\u5220\u9664\u4e00\u4e2a\u5b50\u4e32\u7b49\u3002\u4e24\u4e2a\u5b57\u7b26\u4e32\u76f8\u7b49\u7684\u5145\u8981\u6761\u4ef6\u662f\uff1a
\u957f\u5ea6\u76f8\u7b49\uff0c\u5e76\u4e14\u5404\u4e2a\u5bf9\u5e94\u4f4d\u7f6e\u4e0a\u7684\u5b57\u7b26\u90fd\u76f8\u7b49\u3002\u8bbep\u3001q\u662f\u4e24\u4e2a\u4e32\uff0c\u6c42q\u5728p\u4e2d\u9996\u6b21\u51fa\u73b0\u7684\u4f4d\u7f6e\u7684\u8fd0\u7b97\u53eb\u505a\u6a21\u5f0f\u5339\u914d\u3002\u4e32\u7684\u4e24\u79cd\u6700\u57fa\u672c\u7684\u5b58\u50a8\u65b9\u5f0f\u662f\u987a\u5e8f\u5b58\u50a8\u65b9\u5f0f\u548c\u94fe\u63a5\u5b58\u50a8\u65b9\u5f0f\u3002
i\u3001replace\u65b9\u6cd5
\u8be5\u65b9\u6cd5\u7684\u4f5c\u7528\u662f\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u6240\u6709\u6307\u5b9a\u7684\u5b57\u7b26\uff0c\u7136\u540e\u751f\u6210\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\u3002\u7ecf\u8fc7\u8be5\u65b9\u6cd5\u8c03\u7528\u4ee5\u540e\uff0c\u539f\u6765\u7684\u5b57\u7b26\u4e32\u4e0d\u53d1\u751f\u6539\u53d8\u3002\u4f8b\u5982\uff1a
String
s
=
\u201cabcat\u201d\uff1b
String
s1
=
s.replace\uff08\u2018a\u2019\uff0c\u20181\u2019\uff09\uff1b
\u8be5\u4ee3\u7801\u7684\u4f5c\u7528\u662f\u5c06\u5b57\u7b26\u4e32s\u4e2d\u6240\u6709\u7684\u5b57\u7b26a
String str = "aa？aa？aaaaaaa？aaaaaaaa？aaaaa？aaaaaa？aa";
String destStr = "";
String ss[] = str.split("？");
for (int i = 0; i < ss.length; i++) {
if (i % 2 == 1) {
destStr = destStr + ss[i] + ">>";
} else if (i != ss.length - 1) {
destStr = destStr + ss[i] + "<<";
}
}
System.out.println(destStr);
String str = "aa?aa?aaaaaaa?aaaaaaaa?aaaaa?aaaaaa?aa"; char[] ch = str.toCharArray(); StringBuffer sb = new StringBuffer(); for (int i = 0; i < ch.length; i++) { String temp = String.valueOf(ch[i]); if (temp.equals("?")) { if ((i + 1) % 2 == 0) { temp = ">>"; } else { temp = "<<"; } } sb.append(temp); }
str = sb.toString();
绛旓細鍦↗ava涓幏鍙栧瓧绗︿覆涓寚瀹氱殑鍊煎彲浠ヤ娇鐢ㄤ互涓嬪嚑绉嶆柟寮忥細鐐瑰嚮瀛︿範澶у巶鍚嶅笀绮惧搧璇1.浣跨敤substring()鏂规硶鍙互浣跨敤String绫绘彁渚涚殑substring(intbeginIndex锛宨ntendIndex)鏂规硶锛屼粠鍘熷瀛楃涓蹭腑鎴彇鍑烘寚瀹氳寖鍥寸殑瀛楃瀛愪覆銆俠eginIndex琛ㄧず鎴彇鐨勮捣濮嬩綅缃紝endIndex琛ㄧず缁撴潫浣嶇疆锛堜笉鍖呭惈锛夈2.浣跨敤StringUtils绫诲彲浠ヤ娇鐢ˋpacheCom...
绛旓細String str = "aa锛焌a锛焌aaaaaa锛焌aaaaaaa锛焌aaaa锛焌aaaaa锛焌a";String destStr = "";String ss[] = str.split("锛");for (int i = 0; i < ss.length; i++) {if (i % 2 == 1) {destStr = destStr + ss[i] + ">>";} else if (i != ss.length - 1) {destStr =...
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绛旓細import java.util.Arrays;public class NumberSplit { public StringBuffer getString(String str) { StringBuffer strbuf = new StringBuffer("t"); boolean flag = true;for (int i = 0; i < str.length(); i++) { char c = str.charAt(i);// 鍒ゆ柇鏄惁鏄暟瀛 if (c >= ...
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绛旓細鐩存帴浣跨敤绌哄瓧绗︿覆鏇挎崲锛屽涓嬶細String b = "abcabcabc";b=b.replace("b","");Java String.replace()鏂规硶鐢ㄦ硶 杩斿洖涓涓柊鐨勫瓧绗︿覆,鐢╪ewChar鏇挎崲姝瀛楃涓蹭腑鍑虹幇鐨勬墍鏈塷ldChar
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绛旓細鏂瑰紡涓锛氫緥濡傦細鈥0000123鈥 锛瀛楃涓蹇呴』鍏ㄤ负鏁板瓧锛 锛屽鐞嗚繃绋嬶細鏂瑰紡浜岋細渚嬪锛氣0000123鈥 锛屽鐞嗚繃绋嬶細鏂瑰紡涓夛細渚嬪锛氣0000123鈥 锛屽鐞嗚繃绋嬶細Java鏄竴闂ㄩ潰鍚戝璞＄紪绋嬭瑷锛孞ava璇█浣滀负闈欐侀潰鍚戝璞＄紪绋嬭瑷鐨勪唬琛紝鏋佸ソ鍦板疄鐜颁簡闈㈠悜瀵硅薄鐞嗚锛屽厑璁哥▼搴忓憳浠ヤ紭闆呯殑鎬濈淮鏂瑰紡杩涜澶嶆潅鐨勭紪绋嬨侸ava鍏锋湁绠鍗曟...
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