Java: The value of the local variable string is not used

If you see "The value of the local variable string is not used" warning message in your class while using Eclipse IDE, the reason is that you have declared a local variable (a variable inside a method) and you have not used it anywhere in your class. So when the code is compiled by Eclipse for you, it seems that there this particular String variable has no references and is useless - as this may not break your code, just get a friendly warning with yellow highlighting.

The solution is very simple, you need to either use that variable in your code if you think it's unwanted, simply remove that particular statement.

package sample;

public class Sample {

	public static void main(String[] args) {
		String output = "Output:";

		String sentence = "This is my sentence";
		for (int i = 0; i < sentense.length(); i++) {
			System.out.println(sentense.charAt(i));
		}
	}
}

As you see I haven't used the output String variable anywhere, to fix this issue I can simply add a System.out.println(output); sentence just after the declaration or remove it completely.