Compound operators

[Laimonas Oberauskis]

Hi, I've run into such problem.

public class Sample {
	int a = 0;
	a = a + 1;
	
	public static void main(String[] args) {
		
	}
}

The code won't compile. Same for a += 1 or a++. Why?

[Stephan van Hulst]

The problem is not with what operator you're using, but with where you're putting your code. You can't just have statements inside your class body, they need to be in a method.

[Yosuf Ibrahim]

Laimonas Oberauskis wrote:Hi, I've run into such problem.

public class Sample {
	int a = 0;
	a = a + 1;
	
	public static void main(String[] args) {
		
	}
}

The code won't compile. Same for a += 1 or a++. Why?

Outside the method, you can only declare variables and initialize them, however doing anything to the variable after initializing it has to be inside a method.

[Paul Clapham]

To be picky, a statement has to be in a method or a constructor or an initializer. (There's probably something else I've left out.) But in any case your statement isn't in any of those things, hence the error message.