在上述示例中,lastIndexOf()方法搜索了字符串"Hello World"中最后一次出现的字符'o',并且返回该字符的索引位置为7。 查找字符串 下面的示例演示了如何使用lastIndexOf()方法查找字符串最后一次出现的索引位置: Stringstr2="I love Java program";intlast_index2=str2.lastIndexOf(
如果未找到该元素,则此方法返回 -1。 例子1 importjava.util.concurrent.CopyOnWriteArrayList;publicclassCopyOnWriteArrayListLastIndexOfExample1{publicstaticvoidmain(String[] args){//Initializing CopyOnWriteArrayList of IntegersCopyOnWriteArrayList<Integer>numbers =newCopyOnWriteArrayList<>(newInteger[] {1,2,1,4,5,...
程序2:演示IndexOutOfBoundsException // Java code to illustratelastIndexOf()importjava.util.*;publicclassStackDemo{publicstaticvoidmain(String args[]){// Creating an empty StackStack<Integer> stack =newStack<Integer>();// Use add() method to add elements in the Stackstack.add(1); stack.ad...
3,5,7,9]; // 从左往右查找, 找到返回索引,
用示例链接 Java 中的 lastIndexOf()方法列表 原文:https://www . geeksforgeeks . org/linked list-last indexof-method-in-Java-with-examples/ 存在于 java.util 包中的链接列表类的 lastIndexOf(Object element)方法用于检查和查找列表中特定元素的出现。如果该 开发
import java.util.ArrayList; public class Main { public static void main(String[] args) { ArrayList<String> cars = new ArrayList<String>(); cars.add("Volvo"); cars.add("Ford"); cars.add("BMW"); cars.add("Ford"); cars.add("Mazda"); System.out.println(cars.indexOf("Ford")); Sy...
Learn how to find the last index of a particular word in a string using Java. This guide provides clear examples and explanations for better understanding.
text/java this.codePointAt(k) == ch </blockquote> is true. In either case, if no such character occurs in this string, then-1is returned. TheStringis searched backwards starting at the last character. Java documentation forjava.lang.String.lastIndexOf(int). Portions of...
Find the last occurrence of "e" in a string, starting the search at position 5: publicclassMain{publicstaticvoidmain(String[]args){StringmyStr="Hello planet earth, you are a great planet.";System.out.println(myStr.lastIndexOf("e",5));}} ...
Java 中的数组列表 lastIndexOf(),示例 原文:https://www . geesforgeks . org/ArrayList-last indexof-Java-example/ Java 中 数组列表 的 lastIndexOf() 方法用于获取数组列表对象中元素最后一次出现的索引。语法: lastIndexOf(element) 参数:要返回最后一个索引的元