Java：利用字符数组将整数反转
package com.zbj.demo;
import org.junit.Test;
public class NumReverse {
int a = 1234;
int b = -6379;
@Test
public void numreverse() {
char[] chars = ("" + b).toCharArray();
int i = 0, j = chars.length - 1;
if (chars[0] == '-') {
i = 1;
}
for (; i < j; i++, j--) {
char temp = chars[i];
chars[i] = chars[j];
chars[j] = temp;
}
// System.out.println(new String(chars));
int parseInt = Integer.parseInt(new String(chars));
System.out.println(parseInt);
}
}