Java程序设计测验题附答案

1、Java程序设计测验题复制您的学号： 填空题 *_您的姓名： 填空题 *_您的班级： 单选题 *软工1901软工19021. 有如下代码段，其运行结果为：_class Test public static void main(String args) String s1 = Hello World!; String s2 = new String(Hello World!); if (s1.equals(s2) System.out.println(equal); else System.out.println(not equal); 填空题 *_(答案：equal)2. 有如下代码段，其运行

2、结果为：_class Test public static void main(String args) int x = 5, y; if (x = 0) if (x 0) y = 8; else y = 4; else y = -8; System.out.println(y); 填空题 *_(答案：8)3. 有如下代码段，其运行结果为：_public class Test public static void main(String args) int i, s = 0; int a = 3, 4, 5; for (i = 0; i 10); public static void main

3、(String arg) int i = 10; Test t = new Test(); t.printValue(i); 填空题 *_(答案：The value is 10)6. 有如下代码段，其运行结果为：_class Point static int x; int y;class Test public static void main(String args) Point p1 = new Point(); Point p2 = new Point(); p1.x = 100; p1.y = 200; System.out.print(p2.x + , + p2.y); 填空题 *_

4、(答案：100, 0)7. 有如下代码段，其运行结果为：_public class Test public static void main(String args) int i, j; int a = 2, 3, 9, 4, 5 ; for (i = 0; i a.length - 1; i+) int k = i; for (j = i; j a.length; j+) if (aj ak) k = j; int temp = ai; ai = ak; ak = temp; for (i = 0; i c ? a : c; d = d 2 b ? d : b; System.out.pri

5、ntln(b); 填空题 *_(答案：6)11. 有如下代码段，其运行结果为：_public class Test public static void main(String args) byte A = (byte) 65535; if (A = 65535) System.out.println(Equal); else System.out.println(Not Equal); 填空题 *_(答案：Not Equal)12. 有如下代码段，其运行结果为：_public class Test public static void main(String argv) int anar =

6、 new int3; System.out.println(anar1); 填空题 *_(答案：0)13. 有如下代码段，其运行结果为：_public class Test public static void swap(int a, int b) int t = a; a = b; b = t; public static void main(String args) int x = 11; int y = 22; swap(x, y); System.out.print(x= + x); 填空题 *_(答案：x=11)14. 有如下代码段，其运行结果为：_public class Test

7、 static int j = 2; public static void main(String args) int i = 4; Test t = new Test(); t.amethod(i); System.out.println(i + and + j); public void amethod(int x) x = x * 2; j = j * 2; 填空题 *_(答案：4 and 4)15. 有如下代码段，其运行结果为：_class Counter static int total; int number; Counter() total+; number+; class St

8、atistics public static void main(String args) Counter c = null; for (int i = 1; i 10; i+) c = new Counter(); System.out.println(number = + c.number + / total = + c.total); 填空题 *_(答案：number = 1/ total = 9)16. 有如下代码段，其运行结果为：_class Father String name; int age; public Father(String name, int age) = name; this.age = age; void out() System.out.print(姓名: + name); System.out.print( 年龄: + age); public class Son extends Father String school; public Son(String name, int age) super(name, age); void out() super.out(); System.out.println( 学校