将对象封装到stringBuilder中,调用reverse方法进行反转。例如:
// 字符串
String girl = "李燕茹";
// 字符串转StringBuilder
StringBuilder stringBuilder = new StringBuilder(girl);
// 通过StringBuilder的reverse反转
girl = stringBuilder.reverse().toString();
System.out.println(girl);
输出茹燕李
public class test { public static void main(String[] args) { &...
在java中字符串属于对象,刚开始我就疑惑为什么int char等类型都是小写,结果String是大写,java太反人类,后来才知道String是对象。(1).java创建字符串String text = "net"; String tex...
java stringBuffer(1).stringBuffer和stringBuilder区别stringBuffer是线程安全的,stringBuilder速度更快(2).简单的stringBuffer例子StringBuffer sBuffer = new&nb...
(1).创建数组double[] myList = new double[size]; //推荐创建方式 double myList[] = new double[size];  ...
pattern表示正则表达式,接收正则表达式作为参数例子:String content = "my name is gaojiufeng"; String pattern = "....
java命令行传参,java从命令行接收参数public static void main(String[] args) { for (int i = 0;&nb...