循环可以用别的吗？

源自：4-15 编程练习

循环可以用别的吗？

if(num>=0&&num<=999999999){

while(num!=0){

count++;

num/=10;

}

System.out.println("它是个"+count+"位的数");

}else{

System.out.println("输入有误！");

}

改为for循环

提问者：独孤笑败 2019-05-14 11:55

个回答

宇悟成

2019-06-03 13:46:42

public class HelloWorld{
public static void main(String[] args){
int num = 118579;
int count = 0;
for(count=0;count<10;count++)
{
if(num%10!=0||num>0)
{
num=num/10;
}
else
{
System.out.println("它是个"+count+"位的数！");
break;
}
}
}
}

0
慕瓜5579907

2019-05-15 19:54:33

public class HelloWorld{
public static void main(String[] args){
int num = 999;
int count = 0;
for(;num>0; num=num/10){
if(num%10!=0){
count++;
}
}
System.out.println("它是个"+count+"位的数！");
}
}

0
qq_慕仰1299726

2019-05-14 20:22:34

public class HelloWorld{
public static void main(String[] args){
int num = 999;
int count = 0;

do
{
count++;
num=num/10;
}
while(num >0);

System.out.println("它是个" + count + "位的数！");
}
}

0