When we do not pass theendIndexargument, the substring is taken up to the last character of the string. In other words, if not specified, the value ofendIndexis always‘string.length() – 1’. In the following example, we are getting the substring from index position 6. Assertions.asser...
In case of substring method, startIndex is always inclusive and endIndex is exclusive String substring Example: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 package org.arpit.java2blog; public class StringSubStringExample { public static void main(String[] args) { String str1= "java2...
整合上述步骤,下面是一个完整的 Java 程序示例: publicclassSubstringExample{publicstaticvoidmain(String[]args){// 创建一个字符串变量StringoriginalString="Hello, World!";// 判断字符串是否为空if(originalString.isEmpty()){System.out.println("字符串为空,无法去掉最后一位。");}else{// 使用 substring ...
importjava.util.Scanner;publicclassSubstringExample{publicstaticvoidmain(String[]args){Scannerscanner=newScanner(System.in);System.out.print("请输入字符串: ");StringinputString=scanner.nextLine();System.out.print("请输入要截取的位数: ");intn=scanner.nextInt();intlength=inputString.length();intst...
Let us see the full java code for the example stated above. public class SubstringExampleWithBothIndex { public static void main(String[] args) { String name = "codeRolls.com"; String result = name.substring(4, 9); System.out.println(result); } } Output: Rolls Note: substring(int...
Java String substring() 方法示例 publicclassSubstringExample{publicstaticvoidmain(String args[]){ String s1="javatpoint"; System.out.println(s1.substring(2,4));//returns vaSystem.out.println(s1.substring(2));//returns vatpoint}} va
123Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 15 at java.lang.String.substring(String.java:1963) at SubstringExample2.main(SubstringExample2.java:8) 内部实现 介绍substring() 方法内部实现是怎样的。 内部实现1...
There are two variants of substring method in Java. 1. Only the beginIndex: Stringsubstring(intbeginIndex) Returns the substring starting from the specified indexbeginIndextill the last character of the string. For example:"Chaitanya".substring(2)would return"aitanya". ThebeginIndex is inclusive, ...
Example 1: Java substring() With Only Start Index classMain{publicstaticvoidmain(String[] args){ String str1 ="program";// 1st character to the last character System.out.println(str1.substring(0));// program // 4th character to the last characterSystem.out.println(str1.substring(3));/...
mysql> select substring('example.com', 4, 2); +---+ | substring('example.com', 4, 2) | +---+ | mp | +---+ #从字符串的第 4 个字符位置(倒数)开始取,只取 2 个字符。 mysql> select substring('example.com', -4, 2); +---+ | substring('example.com', -4, 2...