在Java程序中,需要通过import语句来导入需要使用的类。可以在文件的开头添加以下import语句来修复这个错误: import java.util.Scanner; 复制代码 “cannot resolve symbol” 错误:这个错误通常是由于没有正确创建Scanner对象导致的。在使用Scanner之前,需要先创建Scanner对象,可以使用下面的语句来创建: Scanner scanner = ne...
public class Workshop3 { public static void main (String [] args) { System.out.println ("please enter radius of circle"); double radius; Scanner keyboard = new Scanner (System.in); keyboard.nextDouble (radius); } } The error I recieve is cannot find symbol - class scanner on the ...
import java.util.*; import java.io.*; public class LSArrayApp{ public static void main(String[] args){ System.out.println(ReadFile()); } public static String[] ReadFile(){ try{ File myFile =new File("fileName.txt"); Scanner scan = new Scanner(myFile); System.out.println("Scanner...
Frist.java:5: cannot resolve symbol symbol : class Scanner location: class Frist Scanner input=new Scanner(System.in);Scanner是JDK5开始才有的 这样的错误是因为JDK版本不够,不支持。。 socket 用来写网络通讯程序的,简单来说在远程机器,和本地机器各建一个socket,然后进行连接通讯即可。QQ什么的都网络通讯...
birdofjava 水 1 revese.java:1: cannot resolve symbol symbol : class Scanner location: package util import java.util.Scanner; ^ 1 error 梦醒 这个错误是怎么回事birdofjava 水 1 import java.util.Scanner; 为什么要引入这个类?梦醒┽分 水 1 ...
importjava.util.*;publicclassAverage2{publicstaticvoidmain(String[] args){try{Scannerconsole=newScanner(System.in); double sum=0; int count=0;while(true){ intnumber=console.nextInt();if(number==0){break; } sum+=number; count++;
答: import java.util.*; public class exercise03_08 { public static void main(String[] args) { Scanner reader=new Scanner(System.in); int a,b,t1,t2,tmp; a=reader.nextInt(); b=reader.nextInt(); if(ab) {t1=b;t2=a;}else {t1=a;t2=b;} while(t2%t1!=0) {tmp=t2;t2=t1; ...
/*** 以下语句有什么问题*/publicclassE_4 {publicstaticvoidmain(String[] args) {inta = 2,b=3,c=0;/*** Cannot resolve symbol 'then' **///if (a > b) then c = 0;//if a > b {c = 0}//if()if(a > b) c = 0;//bingo//if (a > b) c = 0//Lack of semicolons beh...
从底层实现上来看,com.sun.tools.javac.parser.Scanner类,按照单个字符的方式读取 Java 源文件中的关键字和标示符等内容,然后将其转换为符合 Java 语法规范(JLS ch3)的Token序列。例如,针对语句int y = x + 1;的词法解析过程如下图所示9: 然后,com.sun.tools.javac.parser.JavacParser类,读取 Token 序列,...
"); String complains = scanner.next(); } there is variable named complains, but when i printed this variable outside if-else statement, it shows error : Error:(152, 55) java: cannot find symbol symbol: variable complains location: class com.main.app maybe it because of non-ac...