public class HelloWorld{
pubilc stastic void main(String[] args){
System.out println(''Hello World'');
}
}
System的首字母要大寫,String的首字母也要大寫
pubilc stastic void main(String[] args){
System.out println(''Hello World'');
}
}
System的首字母要大寫,String的首字母也要大寫
2023-03-20
最簡單的做法,給大家參考一下
public class HelloWorld{
public static void main(String[] args){
int num = 9999;
int count = 0;
char ccount;
while(num/10>0){
count+=1;
num=num/10;
}
count+=1;
System.out.println("它是個"+count+"位的數(shù)!");
}
}
public class HelloWorld{
public static void main(String[] args){
int num = 9999;
int count = 0;
char ccount;
while(num/10>0){
count+=1;
num=num/10;
}
count+=1;
System.out.println("它是個"+count+"位的數(shù)!");
}
}
2023-03-16