字符数组或字符串逆转的几种方法

public class Test {public static void main(String[] args) {//字符逆转char[] ss=new char[]{'a','b','c'};//char[] temp = new char[ss.length];//int count = 0;////for(int i = ss.length - 1; i >= 0 && count < temp.length; i--){//temp[count] = ss[i];//count++;//}//ss = temp;////System.out.println(ss);//字符逆转String s = new String(ss);StringBuffer sb = new StringBuffer(s);sb.reverse();ss = sb.toString().toCharArray();System.out.println(ss);//字符串逆转String str = "abc123";StringBuffer sb1 = new StringBuffer(str);System.out.println(sb1.reverse());// 字符串逆转String str1 = "abc123";StringBuilder sb2 = new StringBuilder();for(int i = str1.length() - 1; i >= 0; i-- ){char c = str1.charAt(i);sb2.append(c);}str1 = sb2.toString();System.out.println(str1);}}