INTRODUCTION TO JAVA PROGRAMMING教学（华南理工）TEST9.docVIP

1 What is the printout for the first statement in the main method?public class Foo {??static int i = 0;??static int j = 0;??public static void main(String[] args) {????int i = 2;????int k = 3;????{??????int j = 3;??????System.out.println(i + j is + i + j);????}????k = i + j;????System.out.println(k is + k);????System.out.println(j is + j);??}} A. i + j is 5 B. i + j is 6 C. i + j is 22 D. i + j is 23 D 2 What is the printout for the second statement in the main method?public class Foo {??static int i = 0;??static int j = 0;??public static void main(String[] args) {????int i = 2;????int k = 3;????{??????int j = 3;??????System.out.println(i + j is + i + j);????}????k = i + j;????System.out.println(k is + k);????System.out.println(j is + j);??}} A. k is 0 B. k is 1 C. k is 2 D. k is 3 C 3 What is the printout for the third statement in the main method?public class Foo {??static int i = 0;??static int j = 0;??public static void main(String[] args) {????int i = 2;????int k = 3;????{??????int j = 3;??????System.out.println(i + j is + i + j);????}????k = i + j;????System.out.println(k is + k);????System.out.println(j is + j);??}} A. j is 0 B. j is 1 C. j is 2 D. j is 3 A 4? You can declare two variables with the same name in __________. A. a method one as a formal parameter and the other as a local variable B. a block C. two nested blocks in a method (two nested blocks means one being inside the other) D. different methods in a class D 5? Analyze the following code:class Circle {??private double radius;????public Circle(double radius) {????radius = radius;??}} A. The program has a compilation error because it does not have a main method. B. The program will compile, but you cannot create an object of Circle with a specified radius. The object will always have radius 0. C. The program has a compilation error because you cannot assign radius to radius. D. The program does not compile because Circle does not hav