Java辅导：CS2360 Print a Butterfly讲解Java程序、Java程序解析

Java，。

Problem-1 Printing Figures

Write a program that takes one positive integer as input and assume the integer is n. You program will print a figure according to the value of n. Some samples are displayed as below.

Problem-2 Print a butterfly

Implement the program that takes an integer n as input and prints out the following pattern.

n is an input integer, and you may assume n is less than 10 and n is nonnegative. Note the spacing and how the digits align between different lines.

Problem-3 Prime numbers

Implement the program that takes an integer n and output all the prime numbers in increasing order that satisfy the three requirements: 1) no more than n (includes n); 2) the last digit of the prime numbers cannot be 3; and 3) the sum the printed numbers cannot be larger than 3n. Check Wiki if you need the definition of prime numbers.

Submission Guidelines

What if I do not follow the suggested filenames (e.g., A.java)?

• You should put your programs into the Source Programs, and only Source program need to be submitted.
• Your assignment may be missed and may not be marked.

What is “Programming Skills”?

• Document your source programs properly (e.g., put appropriate comments at appropriate places in your source programs)
• Name the variables in the meaningful ways
• Use proper indentation
• Your programs are well designed and easily readable

How do you mark my assignment?

• For each problem, we have several test cases. Also, we will read your program.
• If your program does not show correct answers, some (or all) marks will be deducted depending on the mistakes/errors you make.
• If your program has “compilation errors”, NO MARK will be given.
• For each problem, we mark your “programming skills”. As long as your “programming skills” is acceptable, no mark will be deducted

What else I should know?
Each source program must start with the following comments:

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// Name: (Your name)
// Student ID: (Your student ID)
// Lab section: (Your lab session) (e.g., T01)