English 中文(简体)
在java建立一个简单的标签
原标题:create a simple label in java
  • 时间:2012-01-16 08:24:06
  •  标签:
  • java
  • jframe

在左边,我做了以下工作:

import javax.swing.JFrame;
import javax.swing.JLabel;

//import statements
//Check if window closes automatically. Otherwise add suitable code
public class HelloWorldFrame extends JFrame {

    public static void main(String args[]) {
        new HelloWorldFrame();
    }
    HelloWorldFrame() {
        JLabel jlbHelloWorld = new JLabel("Hello World");
        add(jlbHelloWorld);
        this.setSize(100, 100);
        // pack();
        setVisible(true);
    }
}

But there is no label shown, I mean nothing appears. Only the console shows this:

JUnit version 4.10

Time: 0.001

OK (0 tests)

是否有任何想法?

最佳回答

检查你们的运行情况,因为它看着像你一样,正在对Junnit进行测试,而不是这一类。 检查你的座椅,以确保你作为 Java申请管理这一类别。

在Eclipse编辑开设的这个班子上,可以到Run菜单上,选择Run为项目,然后是。 Java application (or Alt+Shift+X,J).

问题回答

它希望你作为Junnit测试套而不是 Java申请来管理你的方案。 你们如何利用民主选举学会的是什么开始?





相关问题
Spring Properties File

Hi have this j2ee web application developed using spring framework. I have a problem with rendering mnessages in nihongo characters from the properties file. I tried converting the file to ascii using ...

Logging a global ID in multiple components

I have a system which contains multiple applications connected together using JMS and Spring Integration. Messages get sent along a chain of applications. [App A] -> [App B] -> [App C] We set a ...

Java Library Size

If I m given two Java Libraries in Jar format, 1 having no bells and whistles, and the other having lots of them that will mostly go unused.... my question is: How will the larger, mostly unused ...

How to get the Array Class for a given Class in Java?

I have a Class variable that holds a certain type and I need to get a variable that holds the corresponding array class. The best I could come up with is this: Class arrayOfFooClass = java.lang....

SQLite , Derby vs file system

I m working on a Java desktop application that reads and writes from/to different files. I think a better solution would be to replace the file system by a SQLite database. How hard is it to migrate ...

热门标签