CSCA20H3 Lecture : old stuff.docx

68 views3 pages

cerisealligator589

28 Apr 2012

School

Department

Course

Professor

For unlimited access to Class Notes, a Class+ subscription is required.

Document Summary

If you want one number a line , then. A=[1,2,3,4,5] sum=0 for single in a: sum+=single print sum. If youw ant all numbers in the same line, then. If youw ant all numbers in the same line, but with a tab in between , then. Note you need to convert the sum ( an integer) into string first !!: one number on a line, is the same as. Print str(sum) +"\n": 3, by defining a function ,and use return, instead of print as the last step, def find_len(x): sum=0 for single in a: sum+=single return sum. Need to be the sam as the for statement ! By using this method, you can return the final result , instead of printing all the results at each step. The comma means this line is not finished yet, the content of the second loop round will be displayed on the same line after the first loop content.

Related Questions

59. Line 7 (A) System.out.print("null"); } } (B) System.out.print("*"); } } (C) System.out.print("\n"); } } (D) System.out.print(""); } } (E) System.out.print(" "); } } Coding Question - Sum square difference Write a method called sumSqDiff that takes an input an integer upperBound and returns the difference between the square of the sum and the sum of the squares of all natural numbers, up to and including that bound. For example, if the upperBound is 10, your method should compute the following: 102 (1) (1+2+3+...+10)2 – (12 +22 +32 +...+102) Use the 6 following questions to "write" your code. Pay close attention to how your answers group together with each other.

23. Write a program which takes the average of all of the non-negative command line arguments and then prints the result. Your program must call the methods you wrote in the previous questions. For example, if someone runs the program by typing run Midterm 5 6 10 0 -4 into Dr. Java (or java Midterm 5 6 10 0 - 4 from the command line), your program should print 5.25. You may assume that the person running your program types in integers as command line arguments and also that at least one of the numbers typed at the command prompt is non-negative.

Write a program called Lab 5 that has 3 methods and a main method:
1) Method isUserNameValid has 1 parameter of type string and the method returns a value of type
boolean. If the parameter has less than 8 characters then the method returns false, otherwise it
returns true.
2) Method compare has 3 parameters all of type int and has a String return type. This method will
return
a. “All Same” if all 3 parameters are equal,
b. “All Different” if all 3 parameters are different.
c. “Mix number(s)” two of the numbers are the same and the 3rd is different.
3) Method isValid has 1 parameter of type int and returns a boolean value; the method returns true if
the parameter is in the range 0,…,100 inclusive, otherwise the method returns false.
4) Main method. I want you to test methods isValid & isUsernameValid one time with a valid data
and another time with an invalid data. As for method compare test it 3 times so you can get the 3
different possible outcomes.
Example to test the isUserNameValid method

skyrat848

CSCA20H3 Lecture : old stuff.docx

Document Summary

Get access

Related Documents

CSC 498 Lecture Notes - Lecture 1: Empty String, Bytecode, Negative Number

CMPSC 121 Study Guide - Final Guide: Tuple, Type Conversion, Backslash

CS 1110 Lecture Notes - Lecture 6: Docstring, Pound Sign, Decimal Mark

Related Questions