Consider the following declarations: public interface Encryptable
{
void encrypt(String key);
}
public class SecretText implements Encryptable
{
private String text;
{
// code to encrypt the text using encryption key goes here
}
}
Which of the following method headers should be used to complete the SecretText class?
a. public void encrypt().
b. void encrypt(String aKey).
c. public void encrypt(String aKey, int shift).
d. public void encrypt(String aKey).

Explain briefly why you cannot expect to find a previous version of every file with which you work.

Which spereadsheet type will determine how well a bussiness has done over the past year

Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health? a. air quality data gathered by new instruments can be used to reduce exposure to pollutants. b. new technologies enable natural and human-made pollution sources to be located and monitored. c. air quality data gathered by new instruments can be used to predict trends in pollution over time. d. new technologies allow governments to make informed decisions about the regulation of pollution. (choose more than one)