Eclipse 控制台未显示 output

Question

I have written a simple class having an SOP statement for "Hello World". But the Eclipse console is not showing output. I then wrote the same program in a previously created project and it worked fine. I am opening the Console as given below:

Window->Show View->Console.

But it is not working. I am using j2ee project in the same workspace. Any idea? Please help. I am stuck because of this problem.

Answer 1

Go to "Window > Reset Perspective", that will reset the window settings to default. Next, you might need to stop any running Java processes. I suggest you then click "Remove all Terminated Launches" and if the red "Terminate All" is still available click that as well

Answer 2

[working] I encountered the same problem, I tried with all the solutions provided above but it didn't work then I came to a solution which worked. Follow the following process to overcome the problem.

Right click on workspace provided by Eclipse --> Select "Run As" --> Java Application.

This will work definitely.

Answer 3

Make sure that the project structure should be as follows:

Answer 4

Make sure that your System.out.println("Hello World") is in main method with proper signature.

Ex:

public static void main(String[] args){
System.out.println("Hello World");
}

Answer 5

None of the above. What helped in my case:

Run > Run configurations > Common > uncheck Launch in background (last tab all the way at the bottom).

Then it showed the error why the thing wouldnt start.

In my case: a project dependency to a project which I had closed.

See (rightclick) Project > Build path > Configure build path .

Answer 6

Click on Helps on the top bar. then click on Check for Updates. And update whatever updates are generated for your IDE. Helps> Check for Updates > ....

Hope it will fix your problem.

Answer 7

Double-check you actually saved your file. Many of us forget to save the file and simply hit run.

Answer 8

转至运行>运行配置>鼠标双击Java应用程序>首页>输入你的主路径>完成！

Answer 9

Sometimes it is possible that number of character console can accomodate is beyond capacity, so increase the buffer size of console. windows>prefences>console -increase buffer size

Answer 10

I had the same problem just figured out the solution. Just check your main method it would be

public void main(String[] args){ 

just change it to this:

public static void main(String[] args){

Answer 11

I had the same problem using jre7. Changed to jdk 1.7 and Eclipse console started showing outputs again.

Answer 12

1. Just right click on console window and click Terminate /Disconnect all .
2. Run the class again
3. Done !!!

Answer 13

I've lost the console only in the Java default perspective and I wasn't able to show it again by using window > show view > console .

What I did is the following :

1. window > Perspective > reset perspective
2. window > show view > console

and It appears now!!

Answer 14

If eclipse is not showing path,

Please click on RUN-> Run configuration->click on environment tab->click on New-> add a path variable as mingw_path(if compiler is mingw in case of c++ ) and set value as C:\\MinGw\\bin (please check ur mingw bin path then only set).