Question

Choose the answer that will always produce the same output as the if-else statement below. Assume that grams is an int variable that has been declared and initialized earlier in the program.

if ( grams < 130)
{
System.out.println("Your hamster is a healthy weight");
}
else
{
System.out.println("Your hamster is overweight");
}

Answer 1

To replace the given if-else statement, one could use a conditional (ternary) operator that checks if the variable 'grams' is less than 130. Consistency in measurement units, like using grams for both initial and final weights, is crucial in experiments. To express this using another structure, we could use a conditional (ternary) operator: System.out.println(grams < 130 ? "Your hamster is a healthy weight" : "Your hamster is overweight");

Step-by-step explanation:

To find an alternative to the given if-else statement, we need to look for a statement that evaluates the condition grams < 130 in a similar way. In the context of the question, this corresponds to checking whether a hamster's weight in grams places it in a healthy weight range or indicates that it is overweight.

In the example you provided regarding the lab rats and nutritional experiment, the answer will always output that "Your hamster is a healthy weight" if the variable grams is less than 130, and "Your hamster is overweight" if grams is 130 or more. To express this using another structure, we could use a conditional (ternary) operator:

System.out.println(grams < 130 ? "Your hamster is a healthy weight" : "Your hamster is overweight");

This single-line statement serves the same purpose as the if-else block and will produce the same result depending on the value of the grams variable.

Regarding measurement units, consistency is key in scientific experimentation, such as the experiment involving Linda, Tuan, and Javier's rats. If grams are used for initial measurements, they should be maintained throughout for clarity and consistency, despite the practicality of using smaller or larger unit scales in different circumstances.