实现字符串的反转

public static String reverse(String originStr) {
if(originStr == null || originStr.length() <= 1) {
return originStr;
}

return reverse(originStr.substring(1)) + originStr.charAt(0);
}

public static void main(String[] args) {
System.out.println(reverse("asdfghjkl"));//递归
//StringBuffer reverse()方法
System.out.println(new StringBuffer("sadfsf").reverse());

}