这到底哪里错了?
public class HelloWorld{
public static void main(String[] args){
int num = 999;
int count = 0;
if(num>=0&&num<=999999999){
while(num!=o){
count++;
num/=10;
}
System.out.println("它是个"+count+"位的数!")
}else{
System.out.println("输入有误!");
}
public class HelloWorld{
public static void main(String[] args){
int num = 999;
int count = 0;
if(num>=0&&num<=999999999){
while(num!=o){
count++;
num/=10;
}
System.out.println("它是个"+count+"位的数!")
}else{
System.out.println("输入有误!");
}
2015-07-23
while(num!=o){
这里0写成了o
while(num!=0){
System.out.println("它是个"+count+"位的数!")
这里缺;
System.out.println("它是个"+count+"位的数!");
括号是成对出现的,最后缺2个}
注意代码缩进,这样更易阅读
修改后的代码
public class HelloWorld{ public static void main(String[] args){ int num = 999; int count = 0; 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!"); } } }
举报