My Java Tips

In this post, I will be talking briefly about SuppressWarnings annotation.

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Java compiler gives you warnings to assure that you know what is happening. Sometimes, you want don’t want the warnings. Java 5.0 provides a way for this.

One had to use SuppressWarnings annotation to ignore the warnings. Annotations are followed by @.

For example: consider the following code:

Java Code:

int a;
Object object = new Object();

I declared two variables and did not use them in my code. When I compiled the code, I got 2 warnings:

The local variable a is never read
The local variable object is never read
.

To remove the warnings, I will use the @SuppressWarnings annotation.

Java Code:

@SuppressWarnings("unused")
Object object = new Object();
@SuppressWarnings("unused")
int a;