StringBuildersb=newStringBuilder(); System.out.println("sb:"+sb); System.out.println("sb.length():"+sb.length()); StringBuildersb2=newStringBuilder("abdcdd"); System.out.println("sb2:"+sb2); System.out.println("sb2.length():"+sb2.length()); StringBuildersb3=sb2.append("eee"); Syst...
importjava.util.Scanner;publicclassReverseString{publicstaticvoidmain(String[]args){Scannerscanner=newScanner(System.in);System.out.print("请输入一个字符串:");Stringinput=scanner.nextLine();scanner.close();StringBuilderstringBuilder=newStringBuilder();for(inti=0;i...
1importjava.util.Scanner;23publicclassReverseString {4publicstaticvoidmain(String[] args) {5Scanner scan =newScanner(System.in);6//String text=new String(scan.nextLine());//获取用户输入7StringBuilder sb=newStringBuilder(scan.nextLine());//新建StringBuilder对象8scan.close();//关闭流节省资源9Stri...
public StringBuilder() { super(16); } public StringBuilder(int capacity) { super(capacity); } public StringBuilder(String str) { super(str.length() + 16); append(str); } public StringBuilder(CharSequence seq) { this(seq.length() + 16); append(seq); } @Override public int indexOf(Str...
1. Java Program to Reverse the Characters of a String We canreverse a string by charactereasily, using aStringBuilder.reverse()method. StringblogName="HowToDoInJava.com";Stringreverse=newStringBuilder(string).reverse();System.out.println("Original String -> "+blogName);System.out.println("Rever...
StringBuilder中reverse的疑问 public AbstractStringBuilder reverse() { boolean hasSurrogate = false; int n = count - 1; for (int j = (n-1) >> 1; j >= 0; --j) { char temp = value[j]; char temp2 = value[n - j]; if (!hasSurrogate) { hasSurrogate = (temp >= Character.MIN...
要将StringBuilder修复为String,可以使用StringBuilder的toString()方法。该方法将StringBuilder对象转换为String对象。 示例代码: 代码语言:txt 复制 StringBuilder stringBuilder = new StringBuilder("Hello"); String str = stringBuilder.toString(); 要将StringBuilder中的字符顺序反转,可以使用StringBuilder的reverse()方法。
通过StringBuilder的reverse（）实现倒序 通过StringBuilder的reverse（）实现倒序 1import java.util.Scanner;2 3public class ReverseString { 4public static void main(String[] args) { 5 Scanner scan =new Scanner(System.in);6// String text=new String(scan.nextLine()); //获取⽤户输⼊ ...
Reverse String using StringBuilder StringblogName="How To Do In Java";StringreverseString=newStringBuilder(blogName).reverse().toString();Assertions.assertEquals("avaJ nI oD oT woH",reverseString);
Java Code: // Importing necessary Java utilities.importjava.util.*;// Define a class named Main.publicclassMain{// Method to reverse words in a given string.publicstaticStringWordsInReverse(Stringstr1){// Create a StringBuilder object and reverse the entire string.StringBuildersb=newStringBuilder...