Answer to Question #174516 in Java | JSP | JSF for Jean Claude

Question

3) Refer to the code segment below and answer the questions in the comments labelled Question i – vi. For each answer; provide a brief explanation for your answer.

public class Scope {

private int x = 2;

private int x = 1;

public void start() {

int x = 5;

int x = 2;

//Question i

System.out.printf( "The value of x is %d\n", x );

int x = 2; 

//Question ii

System.out.printf( "\nThe value of x is is %d\n", x );

} // end method begin

public void middle() {

int x = 25;

//Question iii

System.out.printf( "\nThe value of x is %d\n", x );

++x; 

//Question iv

System.out.printf( "The value of x is %d\n", x );

} // end method middle

public void end() { 

//Question v

System.out.printf( "\nThe value of x is %d\n", x );

x *= 10; 

//Question vi

System.out.printf( "The value of x is %d\n", x );

} // end method end

} // end class Scope

Answer 1

public class Scope {


	private int x = 2;


	private int y = 1;// should rename this variable because this non be compiled


	public void start() {


		int x = 5;


		int y = 2;


		// Question i
		// This method if invoke will print x values only in parentheses


		System.out.printf("The value of x is %d\n", x);
		System.out.printf("The value of x is %d\n", y);


		int z = 2;


		// Question ii Name value x change to z because didn't compile


		System.out.printf("\nThe value of x is is %d\n", z);


	} // end method begin


	public void middle() {


		int x = 25;


//Question iii Will print 25 only in parentheses


		System.out.printf("\nThe value of x is %d\n", x);


		++x;


//Question iv Will print 26 after incrementing only in parentheses


		System.out.printf("The value of x is %d\n", x);


	} // end method middle


	public void end() {


//Question v This method first of all will print private x and value 2 declared in top because didn't have local x in parentheses 


		System.out.printf("\nThe value of x is %d\n", x);


		x *= 10;


//Question vi This method will print private x and value 20 multiply 2 by 10 because didn't have local x in parentheses 


		System.out.printf("The value of x is %d\n", x);


	} // end method end
//add method main for invoke those methods


	public static void main(String[] arg) {
		Scope scope = new Scope();
		scope.start();
		scope.middle();
		scope.end();
	}
}