publicclassRemoveLastCharacter{publicstaticvoidmain(String[]args){StringoriginalString="Hello World!";charcharToRemove='o';StringresultString=removeLastCharacter(originalString,charToRemove);System.out.println(resultString);}publicstaticStringremoveLastCharacter(Stringstr,charch){intlastIndex=str.lastIndexOf(ch...
The position that holds the last character istext.length()-1. We used thetoString()method to get the string from ourStringBufferobject. Please bear in mind thatdeleteCharAt(int index)throwsStringIndexOutOfBoundsExceptionif the specified index is negative or greater than the length of the string....
public static String remove(String s,int k){ String regexp="0{"+k+"}"; return s.replaceAll(regexp,""); } public static String remove2(String s,int k){ StringBuilder sb=new StringBuilder(); int count=0; for (int i = 0; i < s.length(); i++) { char a=s.charAt(i); if(...
sb.append(Character.toLowerCase(c)); } return sb.toString(); } /** * 如果不为空,则设置值 * * @param target * @param source */ public static void setValueIfNotBlank(String target, String source) { if (isNotBlank(source)) { target = source; } } /** * 转换为JS获取对象值,生成...
}elseif(kinstanceofTeacher){Teachert=(Teacher) k; } 基础API String 创建 方式一:Java程序中的所有字符串文字(例如“abc”)都为此类的对象。 String name="小黑"; String schoolName="黑马程序员"; 方式二:调用String类的构造器初始化字符串对象。
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...
public static void main(String[] args) { //byte[] buf = new byte[1024*1024*700];//java.lang.OutOfMemoryError内存溢出错误 } } --- 在开发时,如果定义功能时,发现该功能会出现一些问题,应该将问题在定义功能时标示出来,这样调用者就可以在使用这个功能的时候,预先给出处理方式。 如何标示呢?通过thro...
Inserts the string representation of the Object argument into this character sequence. StringBuilder insert(int offset, String str) 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...
// Function to remove the non-alphanumeric characters and print the resultant string public static String rmvNonalphnum(String s) { for(int i=0;i=65 && ascii<=90) || (ascii>=97 && ascii<=122) || (ascii>=48 && ascii<=57))) { s =...
Retrieves and removes the last element of this deque. [Android.Runtime.Register("removeLast", "()Ljava/lang/Object;", "GetRemoveLastHandler")] public virtual Java.Lang.Object? RemoveLast(); Returns Object Implements RemoveLast() Attributes ...