請問怎么修改才能顯示它是個3位的數(shù)!
public class HelloWorld{
public static void main(String[] args){
int num = 999;
int count = 0;
do{count++;
? ? num/=10
}
while(num>0);
System.out.println("它是個"+count+"位的數(shù)！");
江耀楠
2017-05-22
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2017-05-22
public class HelloWorld{
????public static void main(String[] args){
????????int num = 999;? ??
????????int count = 0;????
????????for(; num > 0; count++){????
????????????num /= 10;
????????}
????????System.out.println("它是個" +count +"位的數(shù)！");
????}
}
2017-05-22
public class HelloWorld{
public static void main(String[] args){
int num = 999;
int count = 0;
while(num!=0){
? ? num/=10;
? ? count++;
}
System.out.println("它是個"+count+"位的數(shù)！");
}
}