Syntax error on token package import expected

error I see: Syntax error on token «package», assert expected

Источник

How do I solve the problem:Syntax error on tokens, delete these tokens?

I need help to solve the errors that I am getting for my connection pooling code:-

Generated servlet error:
Syntax error on token «import», delete this token

Generated servlet error:
Syntax error on tokens, delete these tokens

Please do help, thanks!

m_InitialConnectionCount)
<
// Clean up extra available connections.
Connection c = (Connection)m_AvailableConnections.lastElement();
m_AvailableConnections.removeElement(c);

c.close(); // Close the connection to the database.
>

// Clean up is done
>

out.print(«CLEANUP : Available Connections : » + availableCount());

// Now sleep for 1 minute
Thread.sleep(60000 * 1);
>
>
catch(SQLException sqle)
<
sqle.printStackTrace();
>
catch(Exception e)
<
e.printStackTrace();
>
>
>

// Example code using ConnectionPool.

public class Main
<
public static void main (String[] args)
<
try
<
Class.forName(«org.gjt.mm.mysql.Driver»).newInstance();
>
catch (Exception E)
<
out.print(«Unable to load driver.»);
E.printStackTrace();
>

try
<
ConnectionPool cp = new ConnectionPool(«jdbc:mysql://localhost/publications», «books», «books»);

Connection []connArr = new Connection[7];

Problem with import statement,

There are some syntactically wrong with this import tag, How can you import more than one package in JSP page ?

I know the answer but I want you to find out

Thanks, I just tried the below :-

import= javax.naming.*;
import = java.sql.*;
import = java.io.*;
import = java.lang.*;
import = java.text.*;
import = java.util.*;

. and I got more errors. Can you please give me another hint coz i’m totally lost
The errors:-

An error occurred at line: 1 in the jsp file: /publications/connpool.jsp
Generated servlet error:
Syntax error on token «import», invalid Expression

An error occurred at line: 1 in the jsp file: /publications/connpool.jsp
Generated servlet error:
Syntax error on tokens, SimpleName expected instead

An error occurred at line: 1 in the jsp file: /publications/connpool.jsp
Generated servlet error:
Syntax error on tokens, SimpleName expected instead

An error occurred at line: 1 in the jsp file: /publications/connpool.jsp
Generated servlet error:
Syntax error on tokens, SimpleName expected instead

An error occurred at line: 1 in the jsp file: /publications/connpool.jsp
Generated servlet error:
Syntax error on tokens, SimpleName expected instead

An error occurred at line: 1 in the jsp file: /publications/connpool.jsp
Generated servlet error:
Syntax error on tokens, SimpleName expected instead

An error occurred at line: 1 in the jsp file: /publications/connpool.jsp
Generated servlet error:
Syntax error on token «*», Identifier expected

An error occurred at line: 1 in the jsp file: /publications/connpool.jsp
Generated servlet error:
Syntax error on token «import», delete this token

An error occurred at line: 1 in the jsp file: /publications/connpool.jsp
Generated servlet error:
Syntax error on tokens, delete these tokens

Please hheelllpp.

Nothing wrong with your import statement, in jsp page you can always have multiple imports. But something looks wrong with you class declarations, in a jsp page we can only declare abstract or final classes. Another mistake is here.

// Example code using ConnectionPool.

In a jsp page you can not use the import statement any where, it has to come under page directive typically the first statement.

Moreover I am not being able to make out what exactly you want to do, why so many class declarations in side a jsp page?

Ok, I think the problem is in this import , but there is one more import statement in the code, which I haven’t seen previously,

Источник

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import java.lang.Math;

package test1;

package hw1;

import java.lang.Math;

package hw1;

import java.lang.Math;

Не тот ответ, который вы ищете? Просмотрите другие вопросы с метками

java

or задайте свой вопрос.

Я использую Eclipse

 Version: Mars.2 Release (4.5.2)
 Build id: 20160218-0600

и maven (mvn -v)

Apache Maven 3.3.3 (7994120775791599e205a5524ec3e0dfe41d4a06; 2015-04-22T13:57:37+02:00)
Maven home: C:Datenmaven
Java version: 1.8.0_60, vendor: Oracle Corporation
Java home: C:Program FilesJavajdk1.8.0_60jre
Default locale: de_DE, platform encoding: Cp1252
OS name: "windows 7", version: "6.1", arch: "amd64", family: "dos"

my% JAVA_HOME% установлен на

C:Program FilesJavajdk1.8.0_60

и моя java (java -version)

java version "1.8.0_60"
Java(TM) SE Runtime Environment (build 1.8.0_60-b27)
Java HotSpot(TM) 64-Bit Server VM (build 25.60-b23, mixed mode)

Я запускаю eclipse с -vm (версия java jdk), и я добавил внешнюю установку maven в eclipse. после того, как я импортировал проект и получил поведение strang. Некоторые классы красны в eclispe, а некоторые нет. Я проверяю с помощью javap -version, и все они скомпилированы с основной версией 52. Я создал новое рабочее пространство и получил тот же результат. очень странно. Если я открою «красный» Java-класс с eclipse и просто сохраню его, он станет нормально (без ошибок компиляции).

Я действительно не знаю, в чем проблема.

Ошибки, которые я получаю в eclipse

Syntax error on token "package", assert expected
Syntax error on token "import", throw expected

как родительский pom Я использую spring -boot-starter-parent с версией 1.3.3-RELEASE
Я также указал все свойства, которые я знаю как java.version, maven.compiler.source/target и источник сборки проекта и выходное кодирование. также попытался определить плагин компилятора maven. не помогло.

содержащий пример кода

package com.test;
public class AExample {
    public static void main(String[] args) {
        System.out.println(args.length);
    }
}

похоже, что он полностью зависит от пакета, в который я помещал класс.
с некоторым пакетом он просто компилируется, как обычно, с некоторыми имеет следующие erros

com.test cannot be resolved to a type   AExample.java   line 1
Illegal modifier for the local class AExample; only abstract or final is permitted  AExample.java   line 3
Syntax error on token "package", assert expected    AExample.java   line 1
Syntax error, insert "ClassBody" to complete ClassDeclaration   AExample.java   line 3
The nested type AExample cannot hide an enclosing type  AExample.java   line 3

тот же самый класс в другом пакете не вызывал этой ошибки. только в определенном пакете. любые идеи, что я могу проверить?

In this post, I will be sharing how to fix the syntax error on token «,», { expected after this token error in Java. It is a compile-time error. As the name suggests, this error is syntax-based and mostly faced by Java beginners.

Read Also: [Fixed] Unclosed String Literal Error

As always, first, we will produce the syntax error on token «,», { expected after this token error before moving on to the solution. Let’s dive deep into the topic:

Note: This compiler error can be produced only in the Eclipse IDE.

[Fixed] Syntax error on token «,», { expected after this token

1. Producing the error

We can easily produce this error in the Eclipse IDE by writing code or executable statements outside the method as shown below:

import java.util.*;

public class SyntaxError {
	String str = "Alive is Awesome";
	Random rand = new Random();
	for (int i = 0; i < 3; i++) {
	    System.out.println(str);		
	}
}

Output:

2. Explanation:

The cause of this error is due to the code or executable statements not present inside the method. You can not directly write the code in a class in Java. Only variables declaration/initialization are allowed outside the method.

3. Solution:

The above compilation error can be resolved by moving the code inside a method. In simple words, you can’t call a class you have to call a method that is declared inside a class. We can easily avoid this error by using one of the solutions given below:

Solution 1: Using public static void main() method

We have moved the code inside the public static void main() method as shown below in the code:

import java.util.*;

public class SyntaxError {
    public static void main(String args[]) {
	String str = "Alive is Awesome";
	Random rand = new Random();
	for (int i = 0; i < 3; i++){
	    System.out.println(str);		
	}
    } 
}    

Solution 2: Using any method

We can move the executable code inside any method, for example, the printString() method as shown below in the code:

import java.util.*;

public class SyntaxError {
    public static void printString() {
	    String str = "Alive is Awesome";
	    Random rand = new Random();
	    for (int i = 0; i < 3; i++){
	        System.out.println(str);		
	    }
    }
    public static void main(String args[]) {
        printString();
    }
}

Solution 3: Using block

Any executable code inside {} without any method name is called a block. We can move the executable code inside the block also as shown below:

import java.util.*;

public class SyntaxError {
    // Using block
    {
	    String str = "Alive is Awesome";
	    Random rand = new Random();
	    for (int i = 0; i < 3; i++){
	        System.out.println(str);		
	    }
    }
    public static void main(String args[]) {
        new SyntaxError();
    }
}

That’s all for today. Please mention in the comments in case you have any questions related to the syntax error on token «,», { expected after this token error in Java.