Java BASIC program testing(Test time: 100 minutes, total score: 100 points) 1. Fill in the blanks (2 points per question, total 40 points) 1. write the binary, octal, and hexadecimal representation of number 17 respectively: ________________ write the-17 complement: _____________ 2. INT-type variables occupy ______ bytes in memory, and char-type variables occupy _____ bits in memory. 3. The basic development tools for the Java language are _____________ and the integrated development tools are ____________ 4. in JDK, the compilation commands for the Java language are ____________ and the execution commands for the Java language are _______. 5. it is known that the encoding of character a is 97, the encoding of uppercase character a is 65, and the encoding of uppercase and lowercase characters is continuous, then, the lowercase characters E and uppercase characters e are encoded in sequence: _____________ 6. write the result of the following expression: 1) 5% 6/3 2) True & false 3) 5> 34) 12 ^-47. modify the following code: 1) float F = 1.0; 2) Char c = 100000; 3) byte B = 200; 4) Long Int = 100; 8. read the following code and write the program execution result: int first = 100; int second = 100; first = Second ++; second = ++ first; then the values of the first and second variables are ____________ 9 in sequence. in programming, the types of flow control statements are: ______________________ 10. in switc In H (expression), the expression type can be those: ___________________ 11. find out the syntax error in the following code: int n = 10; Switch (true) {default: N ++; Case N: N * = 2; case 10: N * = 2;} 12. the number of times the following loop is written: _____________ int K = 65535; while (K! = 0) {k/= 2;} 13. read the following code: int [] Kind; kind = new int [15]; where the value of kind [0] is: _________ what about kind [15? ____________ 14. Read the following code: int [] test = {,}; then the value of test [4] is: ___________ and the value of test [6? ___________ 15. after writing the following code, the value of each element in the array is: int [] n = {1, 3, 4, 2}; n [0] = 10; N [3] + = N [2]; n [1] = N [2] + N [3]; n [2] ++; then the values of each element in the array are: _______________ 16. the following code is used to calculate the maximum value in an array. Please complete the code: int [] M = {3, 20, 12, 13}; int max = _________________; For (INT I = 0; I <m. length; I ++) {If (_____________) {max = m [I] ;}} 17. java is a simple program language, and we will study it in our mobile game develop course. :__________ ______________________ 18. Logical question: How can I divide 7 apples of the same size and distribute them evenly to four people using a general fruit knife? __________________________________ 19. mathematical Problem: To solve the binary primary equation 2x + 3 = 3y3x + 2 = 2y, the values of X and Y are: ______________ 20. mathematical questions: If the radius of an already known circle is 10, the circumference and area of the circle are __________________ (Note: The circumference value is 3.14). 2. Short answer questions (5 points for each question, total 15 points) 1. briefly describe how Java implements platform-independent (cross-platform) principles. 2. the following code describes the execution process of the for statement. For (Statement A; statement B; Statement C) {Statement D;} 3. description of the syntax format of the three annotations in Java, and purpose 3. Programming question (15 points per question, total 45 points) requirements: Compile the complete code, the code is submitted as an independent file, and a Java source file is created for each question.) 1. write code to determine whether the Number 1059 is a prime number )? Note: prime number refers to the natural number that can only be divisible by 1 and itself. The minimum prime number is. write code to reverse the array element. For example, {1, 2, 3, 4} is changed to {4, 3, 2, 1} 3. Write the code and output the 99 multiplication table.
