What can java static methods make references to Yasser @Jobilize

Author: Yasser Ibrahim

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Question 19 / 297: What is the result of compiling and running the following code?

public class Tester {

	static int x = 4;
	int y = 9;
	
	public Tester() {
		System.out.print(this.x); // line 7
		printVariables();
	}

	public static void printVariables() {
		System.out.print(x); // line 12
		System.out.print(y); // line 13
	}

	public static void main(String... args) { // line 16
		new Tester();
	}
}

A Compile error at line 7 (static x must be only accessed inside static methods )

B Compile error at line 13 (static methods cant make reference to non-static variables )

C Compile error at line 16 (invalid argument type for method main )

D 49

E Compile error at line 12 (must access x by writing Tester.x)

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Explanation:

static methods cannot make references to non-static variables

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