Java 语法错误，插入“VariableDeclarators”完成LocalVariableDeclaration 发生
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Syntax error, insert "VariableDeclarators" to complete LocalVariableDeclaration occurs
提问by Mike
public class Water {
private Graphic graphic;
private float speed;
private float distanceTraveled;
public Water(float x, float y, float direction)
{
speed = 0.7f;
graphic = new Graphic();
graphic.setType("WATER");
graphic.setX(x);
graphic.setY(y);
direction = graphic.getDirection(); //direction from Hero as water is fired
}
public Water update(int time)
{
graphic.draw();
return Water.this;
distanceTraveled; // this is where the error occured...
}
}
When I tried to call distanceTraveled, I am getting the error as:
当我尝试调用时distanceTraveled，我收到以下错误：
Syntax error, insert "VariableDeclarators" to complete LocalVariableDeclaration
语法错误，插入“VariableDeclarators”完成LocalVariableDeclaration
采纳答案by mnille
To make the Syntax error disappear and to assign a value to distanceTraveledmodify the method public Water update(int time)as follows:
使语法错误消失并赋值distanceTraveled修改方法public Water update(int time)如下：
public Water update(int time) {
graphic.draw();
distanceTraveled = 1; // assign a value before returning
return Water.this;
}
Maybe you should read a bit about Java and doing some tutorials, because this is very basic stuff (at least if I'm not getting you wrong).
也许你应该阅读一些关于 Java 的内容并做一些教程，因为这是非常基本的东西（至少如果我没有误解你的话）。
回答by J.M.I. MADISON
CORRECT: <%! ...code... %>(JSP DECLARATION)
正确：<%! ...代码... %>(JSP 声明)
WRONG : <% ...code... %>(JSP SCRIPLET)
错误：<% ...代码... %>（JSP 脚本）
WRONG : <%= ...code... %>(JSP EXPRESSION)
错误：<%= ...代码... %>（JSP 表达式）
Example:
例子：
<!-- ------------------------------------- -->
<html><body><h1>
<%!
public static String fn(){
return( "[CORRECT:USE ! MARK]");
};
%>
<%= fn() %>
</h1></body></html>
<!-- ------------------------------------- -->
Using "<%"or "<%="instead of "<%!"will get error:
使用“<%”或“<%=”代替“<%!” 会得到错误：
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: [3] in the jsp file: [/index.jsp] Syntax error, insert "VariableDeclarators" to complete LocalVariableDeclaration
org.apache.jasper.JasperException：无法为 JSP 编译类：
在jsp文件中的第[3]行发生错误：[/index.jsp]语法错误，插入“VariableDeclarators”完成LocalVariableDeclaration
