Question

java 如何实现一个字符串的反转

Answer 1

package string;

public class StringTest3 {
public static void main(String[] args)
{
String s="abcdefg";
String s2="";
char[] cs=s.toCharArray();
for(int i=cs.length-1;i>=0;i--)
{
s2=s2+cs[i];
}
System.out.println("对字符串进行反转操作后为:"+s2);
StringBuffer sb=new StringBuffer("abcdefg");
StringBuffer sb2=sb.reverse();
System.out.println("对StringBuffer进行反转操作后为:"+sb2);
}

}