Eclipse, Java : Inserting Single line "if block"

If we run our program after completing coding, those will not as excepted mostly, or at-least in testing we will find places where we have missed some null check or etc. So we may have to add a if condition to check and to avoid those Exceptions. Mostly those will be a single line "if blocks".

I am talking about cases like below. Say you have following line:

myObject.myMethod();

Here we got a NullPointerException because myObject is null, I wanted added a null check before this:

if(myObject!=null)
     myObject.myMethod();

This is correct, but I mostly don't like this, for future coding and because of the readability, I prefer to add a block as follows. Sometime reader will think that, all the statements which following the above statement also inside the if condition.

if(myObject!=null){
     myObject.myMethod();
}

It was hard for me always, because I had to write if block and copy paste the statement inside. But i found a method to do in Eclipse without  doing  copy paste.

Just go infront of the statement and start typing your if condition and write up to { and press enter key, then you will get what you want.

if(myObject!=null){|myObject.myMethod(); <-- font="">Keep the curser at the | position and press enter.

Okey now you try and let me know your comments.

Logging Caller Method Info in Java

In our application, one method maybe called from multiple locations. While debugging application we may need to log it caller caller method information in those case following line will be use full.
Here from the current thread, I get called Stack and print that for us.


private static void someMethod() {
System.out.println(Thread.currentThread().getStackTrace()[0]);
System.out.println(Thread.currentThread().getStackTrace()[1]);
System.out.println(Thread.currentThread().getStackTrace()[2]);
}


java.lang.Thread.getStackTrace(Thread.java:1479)
demo.TestThread.someMethod(TestThread.java:14)
demo.TestThread.main(TestThread.java:9)

What we want from this output is "demo.TestThread.main(TestThread.java:9)" So you use in your java application.

System.out.println(Thread.currentThread().getStackTrace()[2]);  


Okey for Android Application I try followings:

public void onCreate(Bundle savedInstanceState) {
..................

        Log.i(TAG, "::onCreate:" +Thread.currentThread().getStackTrace()[0]);
        Log.i(TAG, "::onCreate:" +Thread.currentThread().getStackTrace()[1]);
        Log.i(TAG, "::onCreate:" +Thread.currentThread().getStackTrace()[2]);
        Log.i(TAG, "::onCreate:" +Thread.currentThread().getStackTrace()[3]);

............
}


onCreate:dalvik.system.VMStack.getThreadStackTrace(Native Method)
onCreate:java.lang.Thread.getStackTrace(Thread.java:591)
onCreate:demo.multi.line.text.DemoMultiLineTextActivity.onCreate(DemoMultiLineTextActivity.java:58)
onCreate:android.app.Activity.performCreate(Activity.java:4518)


What we want from this output is "onCreate:android.app.Activity.performCreate(Activity.java:4518)" So you use in your Android application:

        Log.i(TAG, "::onCreate:" +Thread.currentThread().getStackTrace()[3]);