jGuru: Using Java For Loops

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For this exercise you will use a loop to print out some strings and use a nested loop to simulate a multiplication (6*3).

[If you are using IBM's VisualAge for Java for this exercise, then use the scrapbook to type and test your code (without a main method etc...), thus, avoiding the need to fill in the skeleton code, compile, and run from the command line.].

Prerequisites

• None.

Skeleton Code

• Forloop.java

Tasks

1. Make a for loop that prints "Hello" 5 times.
   
   
2. Define an integer sum, initializing it to 0.
   
   
3. Make a loop that counts from 1 to 6.
   
   
4. Make an inner loop, nested within the previous loop, that counts from 1 to 3. The statement of the inner loop should increment sum.
   
   
5. Print out the value of sum.

Where help exists, the task numbers above are linked to the step-by-step help page.

Solution Source

• Forloop.java

Demonstration

If you execute Forloop from a command line, the output should be similar to the following:

Hello
Hello
Hello
Hello
Hello
sum is 18

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