publicclassDeleteLastCharacter{publicstaticvoidmain(String[]args){StringoriginalString="Hello World!";StringnewString=originalString.substring(0,originalString.length()-1);System.out.println("Original String: "+originalString);System.out.println("New String: "+newString);}} 1. 2. 3. 4. 5. 6. ...
下面是一个使用deleteCharAt方法删除最后一个字符的示例代码: publicclassDeleteLastCharacterExample{publicstaticvoidmain(String[]args){Stringstr="Hello World!";StringBuilderstringBuilder=newStringBuilder(str);// 删除最后一个字符stringBuilder.deleteCharAt(stringBuilder.length()-1);System.out.println("删除最后一个...
1. Delete Last Character usingStringBuffer.deleteCahrAt() ThedeleteCharAt()method is a member of theStringBufferclass which deletes a character at a specified index. publicStringBufferdeleteCharAt(intindex) In the following example, we have a string “Hello, World!” and we are using theStringB...
StringUtilscomes with two handy methods that we can use to delete the character at the end of a string. So, let’s dig deep and explore each one. UsingStringUtils.chop()Method StringUtilsprovides thechop()method,especially to remove the last character from a string. This method accepts aStr...
(2)StringBuffer主要方法 1.增 append():在目标字符串后追加字符串 insert():将字符串插入到指定的位置2.删 delete():删除指定的字符串3.改 replace():替换字符串4.反转 reverse():反转字符串 (3)String,StringBuffer和StringBuilder的区别 String:字符串常量,字符串长度不可变。在java底层中,String是char数组...
String trim(); 对两个字符串进行自然顺序的比较 int compareTo(String str) StringBuffer类 StringBuffer是一个容器 特点: 长度可以变化 可以自己操作多个数据类型 最终会通过toString方法变化成字符串 StringBuffer类常见操作 C create U update R read D delete ...
Deletes the character at the specified index. shifts any remaining characters to the left. C# Copy [Android.Runtime.Register("deleteCharAt", "(I)Ljava/lang/StringBuilder;", "")] public Java.Lang.StringBuilder DeleteCharAt (int index); Parameters index Int32 the index of the character to ...
[Android.Runtime.Register("delete", "(II)Ljava/lang/StringBuffer;", "")] public Java.Lang.StringBuffer Delete (int start, int end);Parametersstart Int32 the offset of the first character.end Int32 the offset one past the last character.Returns...
private static void arrayToSet2() { String[] array = {"value1","value2","value3"}; Set<String> set = Stream.of(array).collect(Collectors.toSet()); System.out.println(set); } char > int Character.getNumericValue(numChar) char numChar = '9'; intNum = Character.getNumericValue(num...
long l) Inserts the string representation of the long argument into this sequence. StringBufferinsert(int offset, Object obj) Inserts the string representation of the Object argument into this character sequence. StringBufferinsert(int offset, String str) Inserts the string into this character sequenc...