Java 其中翻转字符串的实现方法
给大家介绍其中常用和不常用的将字符串翻转过来的方法：
import java.util.stack;
public class stringreverse {
public static string reverse1(string s) {
int length = s.length();
if (length <= 1)
return s;
string left = s.substring(0, length / 2);
string right = s.substring(length / 2, length);
return reverse1(right) + reverse1(left);
}
public static string reverse2(string s) {
int length = s.length();
string reverse = "";
for (int i = 0; i < length; i++)
reverse = s.charat(i) + reverse;
return reverse;
}
public static string reverse3(string s) {
char[] array = s.tochararray();
string reverse = "";
for (int i = array.length - 1; i >= 0; i--)
reverse += array[i];
return reverse;
}
public static string reverse4(string s) {
return new stringbuffer(s).reverse().tostring();
}
public static string reverse5(string orig) {
char[] s = orig.tochararray();
int n = s.length - 1;
int halflength = n / 2;
for (int i = 0; i <= halflength; i++) {
char temp = s[i];
s[i] = s[n - i];
s[n - i] = temp;
}
return new string(s);
}
public static string reverse6(string s) {
char[] str = s.tochararray();
int begin = 0;
int end = s.length() - 1;
while (begin < end) {
str[begin] = (char) (str[begin] ^ str[end]);
str[end] = (char) (str[begin] ^ str[end]);
str[begin] = (char) (str[end] ^ str[begin]);
begin++;
end--;
}
return new string(str);
}
public static string reverse7(string s) {
char[] str = s.tochararray();
stack<character> stack = new stack<character>();
for (int i = 0; i < str.length; i++)
stack.push(str[i]);
string reversed = "";
for (int i = 0; i < str.length; i++)
reversed += stack.pop();
return reversed;
}
}