CSC212 Lab 2 2014
--D. Thiebaut (talk) 10:53, 9 September 2014 (EDT)
Contents
Problem 1: playing with ints and doubles
- Write a java program that contains 3 ints and displays the sum of the 3 ints
- Modify your program so that it creates 3 doubles and display their products
Problem 2: Strings
- Write a java program with a function called printBox(). The function receives a string as an argument, and displays the string between 2 lines of stars. For example:
String name = "Smith College"; printBox( name );
- will print something like this:
********************************* Smith College *********************************
- Note that the length of the lines of stars is fixed.
Problem 3: Loops
- Write a Java program that displays all the integers from -10 to +10, one per line.
- Write a Java program that displays all the positive multiples of 3 less than 30, starting with 3.
- Write a Java program that displays all the positive multiples of 3 less than 30, starting with 0.
- Write a Java program that displays all the negative multiples of 5 greater than -40.
- Write a Java program that displays all the powers of 2 less than a million, starting with 2.
- Write a Java program that prints the first 10 positive multiples of 3 and of 5, two per line, as shown below:
3 5 6 10 9 15 ...
If statements
- Write a Java program that prints only the multiples of 3, 5 and 7 that are less than 500. To find if a variable n is divisible by 3, for example, you can do this:
if ( n % 3 == 0 ) { // n is a multiple of 3 } else { // n is not a multiple of 3 }
=Problem 4: