The String class in Java is one of the most important classes in Java. After reading this article you will be able to use the ‘substring()` method of the Str...
在使用substring方法时,需要注意索引的选择。根据Java字符串的特性,索引从0开始计数,因此第一个字符的索引为0,第二个字符的索引为1,依此类推。 另外,substring(int beginIndex, int endIndex)方法中的beginIndex是截取的起始索引(包含),而endIndex是截取的结束索引(不包含)。 5. 结论 通过本文,我们了解了在Java中...
The substring() method in Java is a powerful tool for extracting parts of a string. This method always returns a new string, and the original string remains unchanged becauseString is immutable in Java. In this tutorial, we’ll cover its syntax, use cases, and potential pitfalls while provid...
示例2:演示StringIndexOutOfBoundsException // Java program to demonstrate // Exception thrown by the substring() Method. classGFG{ publicstaticvoidmain(String[]args) { // create a StringBuilder object // with a String pass as parameter StringBuilderstr =newStringBuilder("Indian Team Played Well")...
Java Substring-倒截取实现教程 1. 整体流程 在教会小白如何实现"Java substring 倒截取"之前,首先需要了解整个实现流程。下面是一个使用表格展示的步骤: 接下来,我将逐一解释每一步所需要做的事情和具体的代码实现。 2. 具体步骤和代码实现 第一步:获取原始字符串 ...
在Java中,使用substring方法截取字符串时,原始字符串并不会改变,而是返回一个新的字符串。如果想要改变原始值,可以通过重新赋值或使用StringBuilder类来实现。 流程图 Start输入原始字符串使用substring截取字符串输出截取后的字符串重新赋值给原始字符串输出原始字符串已改变 ...
Substring in Java A substring is a portion of an original string. Syntax String sub = bigString.substring(startIndex, endIndex);//endIndex is optional Notes Like an array, the first index of a string is 0. Example String phoneNumberSentence ="Phone number: 1-800 555 5555"; String phone...
substring(5, 8)); } } Java Copy输出:String contains = GeeksForGeeks SubSequence = For Java Copy例2: 演示StringIndexOutOfBoundsException// Java program to demonstrate // Exception thrown by the substring() Method. class GFG { public static void main(String[] args) { // create a ...
The `substring()` method in Java is used to extract a substring from a given string. It takes two arguments: The starting index of the substring. The ending index of the substring (exclusive)。 For example, the following code snippet extracts the substring "Hello" from the string "Hello,...
The String.substring() in Java returns a new String that is a substring of the given string that begins from startIndex to an optional endIndex. These indices determine the substring position within the original string. The substring() method takes two arguments: beginIndex: the beginning index...