package com.book.lite;import java.util.Scanner;/* 1.將數(shù)組拼接成字符串 2.自定義方法，將緩沖區(qū)翻轉(zhuǎn)*/ public class StringBufferDemo2 {public static void main(String[] args){System.out.println(getString_1());System.out.println(getString_2());}public static String getString_1(){int[] arr = {1,4,6,23,76,45};StringBuffer buffer = new StringBuffer();for (int x = 0 ;x<arr.length;x++){//s += arr[x]; 浪費資源buffer.append(arr[x]);}return buffer.toString();}public static StringBuffer getString_2(){Scanner sc = new Scanner(System.in);System.out.println("請輸入要翻轉(zhuǎn)的字符串：");String s = sc.nextLine();StringBuffer buffer = new StringBuffer();//將緩沖區(qū)轉(zhuǎn)成字符串，在變成字符數(shù)組char[] ch = buffer.append(s).toString().toCharArray();//將數(shù)組遍歷，翻轉(zhuǎn)for (int x = 0 ,y = ch.length-1;x < y;x++,y--){char temp = ch[x];ch[x] = ch[y];ch[y] = temp;}//將原有的緩沖區(qū)數(shù)組清空buffer.delete(0,buffer.length());return buffer.append(ch);} }

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