方法一:使用substring()方法 Java中的substring()方法可以用来截取字符串的一部分。我们可以使用substring()方法来获取字符串的最后两个字符。具体的代码如下所示: Stringstr="Hello World";StringlastTwoChars=str.substring(str.length()-2);System.out.println(lastTwoChars); 1. 2. 3. 上述代码首先定义了一个...
以下是示例字符串: Stringarticle="Java is a popular programming language. It is used for developing a wide range of applications, including web, desktop, and mobile applications. Here is an example of how to use the `substring()` method in Java.";StringcodeSnippet1="String str = \"Hello,...
staticStringusingSubstringMethod(String text,intlength){if(text.length() <= length) {returntext; }else{returntext.substring(0, length); } }Copy In the above example, if the specifiedlengthis greater than the length oftext, we returntextitself. This is becausepassing tosubstring()alengthgreate...
String str = "How to cut and split strings"; //定义字符串 System.out.println("字符串为:"+str); int length = str.length(); //获取字符串长度,保存到变量中 System.out.println("字符串长度为:"+length); /***1、substring()方法截取出第一个单词和最后一个单词***/ //首先配合indexOf()和...
方式一:String result = str.substring(index); 方式二:String result = str.substring(beginIndex,EndIndex);//实际索引号[beginIndex,EndIndex-1] 输出结果:截取出范围内的字符串 (2)拆分方法:split() 方式一:String strArray[] = str.split(正则表达式);// 拆分的结果保存到字符串数组中 ...
1.String.substring()API TheString.substring()in Java returns a newStringthat is asubstring of the given stringthat begins fromstartIndexto an optionalendIndex. These indices determine the substring position within the original string. Thesubstring()method takes two arguments: ...
三个方法的使用: lenth() substring() charAt() package com.mpp.string; public class StringDemo1 { public static void main(String[] args) { //定义一个字符串"晚来天欲雪 能饮一杯无" 代码语言:txt AI代码解释 String str = "晚来天欲雪 能饮一杯无"; 代码语言...
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Java StringBuilder.substring() returns a new String that contains a subsequence of characters, formed using start position and an optional end position, contained in this character sequence. In this tutorial, we will learn about the Java StringBuilder.su
String substring() String startsWith() String endsWith() String toUpperCase() String toLowerCase() Table of Contents 1. Different Ways to Compose Strings 1.1. String Concatenation 1.2. StringBuilder and StringBuffer 1.3. String Templates 2. Compiler Optimization for String Concatenation 2.1. Till ...