Answer:

Enter an integer:
17
The number 17 is zero or positive.
Positive numbers are greater than zero.
Good-bye for now

The false block was executed because the answer to the question (num < 0) was false. The false block consists of three statements.

Outline of a Two-way Decision

Here is an outline of a two-way decision structure:

// statements that are executed before the decision

if ( condition )
    // true branch

else
    // false branch

// statements that are executed after the branches join together again

Here are some details:

The condition evaluates to true or false, often by comparing variables and values.
The else divides the true branch from the false branch.
The statements after the false branch are always executed.
A block consists of several statements inside a pair of braces, { and }.
The true branch can be a block.
The false branch can be a block.
There can be as many statements in a block as you need.
When a block is chosen for execution, the statements in it are executed one by one.

The condition can compare what is held in a variable to other values. You can use the comparisons <, >, and so on. (More about these later.) The first statement after the false branch will be executed no matter which branch is chosen. The if-else is like a fork in the road, but the road always comes together again.

QUESTION 9:

Is the following section of a program correct?

if ( num < 0 )
    System.out.println("The number " + num + " is negative.");   
else
    System.out.println("The number " + num + " is zero or positive.");  
    System.out.print  ("Positive numbers are greater ");  
    System.out.println("than zero. ");    

System.out.println("Good-bye for now");