Answer:
-ea
Explanation:
We can enable or disable assertions in java, by default this assertions are disabled at runtime, but we can use two commands, for example, if we want to enable assertions at various granularities, we can use the -enableassertions, or -ea, switch, if we want to disable at various granularities, is -disableassertions, or -da.
B) Contact metamorphism can occur.
Answer:
import java.io.*;
public class Main
{
public static void main(String[] args) throws IOException {
BufferedReader bufferObject=new BufferedReader(new InputStreamReader(System.in));
String stringObject=bufferObject.readLine();
while(!stringObject.equals("99:99AM")){
System.out.println(convertedTime(stringObject));
stringObject=bufferObject.readLine();
}
}
public static String convertedTime(String stringObject){
String s=stringObject.substring(stringObject.length()-2);
String[] timeObject=stringObject.substring(0,5).split(":");
if(s.equals("AM")){
if(timeObject[0].equals("12")) return "00"+timeObject[1];
else return timeObject[0]+timeObject[1];
}
else{
if(timeObject[0].equals("12")) return "12"+timeObject[1];
else{
int hours=Integer.valueOf(timeObject[0]);
timeObject[0]=String.valueOf(12+hours);
return timeObject[0]+timeObject[1];
}
}
}
}
Explanation:
- Inside the main method run a while loop until stringObject is not equal to the string "99:99AM".
- Call the convertedTime method and display the results.
- Use the same hours and minutes except for 12th hour If the time is in AM.
- Use "00" instead of 12, if it is 12th hour.
- Add hours to 12, if the time is in PM and don't change anything in case of 12.
Answer:
If your cpu usage levels are greater than 90% during most of your work session, a faster CPU can greatly increase your computer's performance
Explanation:
CPU usage level is a good indicator for the computer performance.
Generally, computers use a low portion of their CPU power. When you open an application or listen to music on your computer, CPU usage level increases. After CPU intensive process ends, the CPU usage should drop to lower level again.
But if the CPU usage level is high all the time you use the computer, then it means that either there is a problem causing continuous CPU usage or your CPU is not fast enough. In the case of latter, you'd better to have a faster CPU.
Answer:
The code solution is written in Java.
- import java.util.Scanner;
-
- public class TestScore {
-
- public static void main(String[] args) {
-
- Scanner input = new Scanner(System.in);
-
- System.out.print("Please enter first score: ");
- double firstScore = input.nextDouble();
- System.out.println("Grade: " + determineGrade(firstScore));
-
- System.out.print("Please enter second score: ");
- double secondScore = input.nextDouble();
- System.out.println("Grade: " + determineGrade(secondScore));
-
- System.out.print("Please enter third score: ");
- double thirdScore = input.nextDouble();
- System.out.println("Grade: " + determineGrade(thirdScore));
-
- System.out.print("Please enter fourth score: ");
- double fourthScore = input.nextDouble();
- System.out.println("Grade: " + determineGrade(fourthScore));
-
- System.out.print("Please enter fifth score: ");
- double fifthScore = input.nextDouble();
- System.out.println("Grade: " + determineGrade(fifthScore));
-
- System.out.println("Average score: " + calcAverage(firstScore, secondScore, thirdScore, fourthScore, fifthScore));
-
- }
-
- public static double calcAverage(double score1, double score2, double score3, double score4, double score5){
- double average = (score1 + score2 + score3 + score4 + score5) / 5;
- return average;
- }
-
- public static String determineGrade(double score){
- if(score >= 90){
- return "A";
- }
- else if(score >= 80 ){
- return "B";
- }
- else if(score >=70){
- return "C";
- }
- else if(score >=60){
- return "D";
- }
- else{
- return "F";
- }
- }
- }
Explanation:
Firstly, create the method, <em>calcAverage()</em>, that takes five test scores. Within the method, calculate the average and return it as output. (Line 33 - 36)
Next, create another method, <em>determineGrade()</em>, which takes only one score and return the grade based on the range of the score. (Line 38 -54)
Once the two required methods are created, we are ready to prompt use for input five test scores using Java Scanner class. To use get user input, create a Scanner object (Line 7). Next, use getDouble() method to get an input score and assign it to variables firstScore, secondScore, thirdScore, fourthScore & fifthScore, respectively. Once a score input by user, call determineGrade() method by passing the input score as argument and immediately print out the return grade. (Line 9 - 27)
At last, call calcAverage() method by passing the first test score variables as argument and print out the returned average value. (Line 29).
