Java:判断二进制中左侧起始有多少个0

发布网友发布时间：2022-10-12 13:08

共1个回答

热心网友时间：2023-10-22 03:41

您好，这样的：
public class Test {
public static void main(String args[]) {
int pow = 5;

for(byte i = 0;i < (int)Math.pow(2, pow);i ++)
{
//8 is 1000, so we use (i&8) to know if the most left is 1 or 0
if((i & (int)Math.pow(2, pow - 1)) > 0)
{
System.out.println("Left of Binary " + i + " is " + 1);
}
else
{
System.out.println("Left of Binary " + i + " is " + 0);
}
}
}
}
-----------------------------------------------
class test{
public static void main(String[] args) {
System.out.println(f("10000111110010000111111011111"));
}

static int f(String str) {
int max = 1;
int fast = 0;
char fastC =str.charAt(0);

for (int i = 1; i < str.length(); i++) {
if(str.charAt(i)!=fastC) {
fastC=str.charAt(i);
if (max<i-fast) {
max = i-fast;
}
fast=i;
}
}
//最后一组连续串
if(max<str.length()-fast) {
max = str.length()-fast;
}
return max;
}
}