以下关于方法调用的代码的执行结果是？public class Test {public static void main(String[] args) {int i = 99;mb_operate(i);System.out.println(i + 100);}static void mb_operate(int i) {i += 100;}}

A. 99
B. 199
C. 299
D. 99100

在Java的程序类中如下方法定义正确是哪两项？

A. public int ufTest(int num) { num += 100; return num; }
B. public string ufTest(int num) { num += 100; return num; }
C. public void ufTest(int num) { num += 100; return num; }
D. public float ufTest(int num) { num += 100; return num; }

下面哪两个方法是public void example(){...}的重载方法？

A. private String example( ){...}
B. public int example(String str){...}
C. public void example2( ){...}
D. public int example(int m,float f){...}

补充下列空缺语句，编写一个无参方法，输出HelloWorld。public class Test {public static void main(String[] args) {print();}public static void print() {}}

补充下列空缺语句，实现编写一个得到两个int型参数方法，输出两个参数的和。public class Test {public static void main(String[] args) {int a = 2;int b = 3;print(a, b);}public static void print(int a, int b) {}}

补充下列空缺语句，编写一个得到两个int型参数方法，返回两个参数的和。public class Test {public static void main(String[] args) {double a = print(1, 2);System.out.println(a);}public static double print(double a, double b) {}}

补充下列空缺语句，编写一个方法，求整数n的阶乘，例如5的阶乘是1*2*3*4*5。public class Test {public static void main(String[] args) {int a = print(5);System.out.println(a);}public static int print(int a) {int sum = 1;for (int i = 1; i <= a; i++) {}return sum;}}

补充下列空缺语句，编写一个方法，判断该年份是平年还是闰年。public class Test {public static void main(String[] args) {print(2020);}public static int print(int year) {if () {System.out.println("闰年");} else {System.out.println("平年");}return year;}}

补充下列空缺语句，编写一个方法，输出大于200的最小的质数。public class Test {public static void main(String[] args) {for (int i = 201; i < 300; i++) {if (i % 2 != 0 && i % 3 != 0 && i % 5 != 0 && i % 7 != 0 && i % 9 != 0) {System.out.println(i);}}}}