1. What does the Integer.reverse() method do? A. Reverses the order of digits in an integer B. Converts an integer to a binary string C. Calculates the square of an integer D. Sorts an array of integers Show Answer 2. Which data type does the Integer.reverse() method return...
程序1:对于一个正数。 // Java program to illustrate the// Java.lang.Integer.reverse() methodimportjava.lang.*;publicclassgeeks{publicstaticvoidmain(String[]args){inta=168;System.out.println("Number = "+a);// It returns the value obtained by reversing order of the bitsSystem.out.println("...
方法一 利用StringBuilder的reverse方法,将数字转换成字符反转然后再转换回整数 publicintreverseInteger(intnum){if(num ==0|| (num <10&& num > -10)) {returnnum; }// 获得绝对值 去掉正负号inttemp=Math.abs(num);StringBuilderst=newStringBuilder(String.valueOf(temp));StringBuilderreverse=st.reverse()...
Given a 32-bit signed integer, reverse digits of an integer. Example 1: Input: 123 Output: 321 Example 2: Input: -123 Output: -321 Example 3: Input: 120 Output: 21 Note: Assume we are dealing with an environment which could only store integers within the 32-bit signed integer range:...
1 public class Solution { 2 public int reverse(int x) { 3 StringBuffer sb = new StringBuffer(x+"").reverse(); 4 5 if(sb.c...
Integer.Reverse(Int32) 方法 参考 反馈 定义 命名空间: Java.Lang 程序集: Mono.Android.dll 返回通过反转指定 int 值的二进制补二进制表示形式中的位顺序获得的值。 C# 复制 [Android.Runtime.Register("reverse", "(I)I", "")] public static int Reverse (int i); 参数 i Int32 要撤消的...
Reverse Number using Java program //Java program to Reverse a Number.importjava.util.*;publicclassReverseNumber{publicstaticvoidmain(String[]args){intnumber;Scanner sc=newScanner(System.in);//Read NumberSystem.out.print("Enter an integer number: ");number=sc.nextInt();//calculate reverse numbe...
java.lang.Integer.reverse()是Java中的內置方法,用於返回指定int值的二進製補碼二進製表示形式的位的相反順序。 用法: public static intreverse(int a) 參數:參數a是一個整數值,其位將被取反。 返回值:該方法返回通過反轉指定int值中的位順序獲得的值。
public static int reverse(int x) { int ret = 0; boolean zero = false; while (!zero) { ret = ret * 10 + (x % 10); x /= 10; if(x == 0){ zero = true; } } return ret; } public static void main(String[] args) { ...
public static int reverse(int i) { i = (i & 0x55555555) << 1 | (i >>> 1) & 0x55555555; i = (i & 0x33333333) << 2 | (i >>> 2) & 0x33333333; i = (i & 0x0f0f0f0f) << 4 | (i >>> 4) & 0x0f0f0f0f; ...