“,然后使用substring方法去除了第一个字符,并将结果赋值给了新的字符串newStr。最后,我们打印出newStr的值,结果为"ello World!”。 状态图 下面是一个使用状态图来表示去除字符串最后一个字符的过程的示例: Remove last characterStartRemoveLastChar 以上的状态图使用了mermaid语法来绘制,它展示了从开始状态到去除最...
";charcharToRemove='o';StringresultString=removeLastCharacter(originalString,charToRemove);System.out.println(resultString);}publicstaticStringremoveLastCharacter(Stringstr,charch){intlastIndex=str.lastIndexOf(ch);if(lastIndex==-1){returnstr;// 返回原字符串,字符不在其中}returnstr.substring(...
2. Remove Last Character usingString.substring() This is the most straightforward technique. Thesubstring()method returns a substring betweenbeginandendindices. Note that this methoddoes not check fornullstring. It also does not check for the length of the String, so if wepass anempty stringthe...
StringUtils.substringBefore("abcba", "b");//---"a" StringUtils.substringBeforeLast("abcba", "b");//---"abc" StringUtils.substringAfter("abcba", "b");//---"cba" StringUtils.substringAfterLast("abcba", "b");//---"a" StringUtils.substringBetween("tagabctag", "tag");//---"abc...
the index of the last character in the string whose code is not a space (as defined above). AStringobject is returned, representing the substring of this string that begins with the character at indexkand ends with the character at indexm-that is, the result ofthis.substring(k, m + 1...
Returns a string that is a substring of this string. The substring begins with the character at the specified index and extends to the end of this string. Examples: <blockquote> text/java Copy "unhappy".substring(2) returns "happy" "Harbison".substring(3) returns "bison" "emptiness".sub...
StringUtils.lastIndexOfAny("ghasdf", ["as","df",""]) = 6 40.public static String substring(String str, int start) 得到字符串str的子串。 如果start小于0,位置是从后往前数的第|start|个 如果str为null或"",则返回它本身 举例(*表示任意): ...
Inserts the string into this character sequence. int lastIndexOf(String str) Returns the index within this string of the rightmost occurrence of the specified substring. int lastIndexOf(String str, int fromIndex) Returns the index within this string of the last occurrence of the specified subs...
286 Length of Last Word.java Easy Java [String] 287 Longest Common Substring.java Medium Java [DP, Double Sequence DP, String] 288 Longest Increasing Continuous subsequence.java Easy Java [Array, Coordinate DP, DP] 289 Longest Increasing Continuous subsequence II.java Medium Java [Array, Co...
非常建议在该方法的最后,调用super.finalize()以保证父类的资源被合理的释放。 错误的代码示例 protectedvoidfinalize(){// 错误的使用方式; no call to super.finalize();releaseSomeResources();}protectedvoidfinalize(){super.finalize();// 错误的使用方式; this call should come lastreleaseSomeResources();...