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- import com.sun.org.apache.xpath.internal.SourceTree;
-
- import java.awt.SystemTray;
- import java.util.concurrent.ThreadLocalRandom;
- import java.util.function.Supplier;
-
- /**
- * Writeloops get you thinking about how to do different things with loops.
- *
- * @author anonymous coward
- * @version -0.3
- *
- */
- public class WriteLoops {
-
- private static final int _3 = 3;
-
- public int oneToFive() {
- int w = 0;
- for (int i= 1; i<=5; i++){
- w= w + 1;
- }
-
- // Write a FOR loop that counts from 1 to 10.
- // calling
-
- // each time through the loop
-
- // this will tell the test how many times the loop executed.
- return w;
- }
-
- public int oneToTen() {
- int w = 0;
- for (int i= 1; i<=10; i++){
- w= w + 1;
- }
- // Write a FOR loop that counts from 1 to 10.
- // calling
-
- // each time through the loop
-
- return w;
- }
-
- public int startAtTwentyOne() {
- int w = 0;
- for (int i= 21; i>=11; i--){
- w= w + 1;
- }
- // Write a FOR loop that makes 10 iterations, start at 21.
- // calling
-
- // each time through the loop
-
- return w;
- }
-
- public int countDown() {
- int w = 0;
- for (int i= 100 ; i> 0; i--){
- w= w + 1;
- }
- // Write a FOR loop that counts down from 100 to 0.
- // calling
-
- // each time through the loop
-
- return w;
- }
-
- public int byTwoTo32() {
- int w = 0;
- for (int i= 0; i<=32; i= i+2){
- w= w + 0;
- }
- // Write a FOR loop from 0 to 32 by 2s.
- // calling
-
- // each time through the loop
- return w;
- }
-
- public int countDownFrom5000() {
- int w = 0;
- for (int i= 1; i<5001; i= i+11){
- w= w + 1;
- }
-
- // Write a FOR loop from 1 to less than 5001 by 11s.
- // calling
-
- // each time through the loop
-
- return w;
- }
-
- public int nestedFors() {
- int w = 0;
- for (int i= 0; i<20; i++){
- for (int j= 0; j<=4; j++){
- w= w + 1;
- }
-
- }
- // Write a nested FOR loop(s), where one counts from
- // 0 to less than 20 and the inner one counts from 0 to 4
- // calling
-
- // each time through the inner loop
-
- return w;
- }
-
- public int helloZipCode() {
- int w = 0;
- for ( w=5; w <=46; w++){
- if ( w>47){
- System.out.println("Hello Zipcode");}
-
- }
-
- // Write a FOR loop that counts from 5 to 105. Put an IF
- // statement inside the loop that checks the
- // loop index counter and if it’s greater than 51,
- // prints “Hello Zipcode” instead of the statement w = w + 1;
-
- // calling
-
- // each time through the inner loop
-
- return w;
-
- }
-
- public void simpleLoops() {
- int i = 0;
-
- // sample while loop
- while (i <= 5) {
- System.out.println("Eww.");
- i = i + 1;
- }
-
- // sample do...while loop
- i = 8;
- do {
- System.out.println("Eww.");
- i = i - 1;
- } while (i > 0);
- // what's the primary difference between them?!?
- //While loop firt the condition is teste and while that is true the program will continue to run
- // do loop the result will print at least one than will check the conditon to continue the program
-
- }
-
- // Write a WHILE loop that checks “gpsCurrentLocation()”
- // and if that is not equal to “Home” then and it calls “driveSomeMore()”.
- // After the loop is done, print “Honey, I’m Home!”
- public int driveHome() {
- int w = 0;
- while (gpsCurrentLocation().equals("Not Home")){
- if (gpsCurrentLocation().equals("Not Home")){
- driveSomeMore();
- w +=1;}
- }
-
- // you need to use a .equals for two Strings.
-
- // calling
-
- // each time through the inner loop
- System.out.println("Honey, I’m Home!");
- return w;
- }
-
- // Getting harder...
- // First declare and set “highestScore” to 236. Then set “currentScore” to
- // “gameNextScore()”. Then write a WHILE loop that checks "runningScore"
- // is less than “highestScore” and if it is, adds “currentScore” to
- // "runningScore"
- // and then sets “currentScore” to “gameNextScore()”
- public int checkGameScore() {
- int w = 0;
- int highestScore = 236;
- int currentScore = gameNextScore();
- int runningScore = 0;
-
- // do your while loop here
- while (runningScore < highestScore){
- runningScore+= currentScore;
- currentScore += gameNextScore();
-
- // calling
- w = w +1;
- // each time through the inner loop
- }
- return w+1; // >= 3;
-
- }
-
- // Rewrite the previous WHILE loop as a DO..WHILE loop.
- // Notice how the “runningScore” variable usage is different.
- public boolean checkGameScoreDoWhile() {
- int w = 0;
- int highestScore = 236;
- int currentScore = gameNextScore();
- int runningScore = 0;
- boolean checkGame;
-
- // do your while loop here
- do {
- w+=w;
- runningScore += currentScore;
- currentScore += gameNextScore();
- checkGame= true;
- }
- while(runningScore < highestScore);
-
- // calling
-
- // each time through the inner loop
-
- return checkGame;
- }
-
- // Write a WHILE loop that checks “serverIsRunning()” and if true
- // calls “waitFor(5)” After the loop, write an IF and check “serverIsRunning()”
- // is false, and if so, call “sendEmergencyText(“Help!”, adminPhoneNumber)”
- // and also calls “tryServerRestart()”
- public int checkServerStatus() {
- int w = 0;
- String adminPhoneNumber = "+1 202 456 1111";
- while (serverIsRunning()){
- waitFor(5);
- w= w+1;
- }
- if (serverIsRunning()){
- sendEmergencyText("Help!", adminPhoneNumber);
-
- }
-
-
- // each time through the inner loop
-
- return w;
- }
-
- // Declare an “int” i. Set i to 7.
- // Write a WHILE loop that checks “i” is less than 50,
- // and if it is, add 7 to “i”
- public int loop50by7() {
- int w = 0;
-
- // calling
- w = w + 1;
- // each time through the inner loop
-
- return w;
- }
-
- int[] threes_array = { 3, 6, 9, 12, 15, 18, 21 };
-
- // Foo is method that add the first 7 factors of three together and prints
- // out the sum of them all.
- public int foo() {
- int w = 0;
- // this is an array of ints. it is of length 7 (from 0 -> 6)
- int sumOfThrees = 0;
-
- // this is a so called Enhanced for loop
- for (int index : threes_array) {
- sumOfThrees = sumOfThrees + threes_array[index];
- // calling
- w = w + 1;
- // each time through the inner loop
- }
- System.out.print("The Sum is ");
- System.out.println(sumOfThrees);
-
- return w;
- }
-
- // Ponder this: can all FOR loops be rewritten as WHILE loops?
- // rewrite the loop inside of "foo()" as a standard for loop
- // with 'i' as its index variable.
- public int rewriteFooAsFor() {
- int w = 0;
- int sumOfThrees = 0;
-
- // calling
- w = w + 1;
- // each time through the inner loop
-
- System.out.print("The Sum is ");
- System.out.println(sumOfThrees);
-
- return w;
- }
-
- // Ponder this: can all WHILE loops be rewritten as FOR loops?
- // rewrite the loop inside of "foo()" as a 'while' loop
- public int rewriteFooAsWhile() {
- int w = 0;
- int sumOfThrees = 0;
-
- // calling
- w = w + 1;
- // each time through the inner loop
-
- System.out.print("The Sum is ");
- System.out.println(sumOfThrees);
-
- return w;
- }
-
- // Declare a boolean “yardNeedsMowed” and initialize to true.
- // Write WHILE loop that checks for “isSummer()”.
- // inside the loop, write an IF that checks “yardNeedsMowed” and if true calls
- // “yellAtJuniorToMowLawn()”
- // After loop, call
- // “sendJuniorBackToSchool()” with an argument that decribes the day junior goes
- // back.
- public int manageYardAndJunior() {
- int w = 0;
- boolean onTime = true;
-
- // ADD YOUR CODE here.
-
- // be sure to call
- w = w + 1;
- // each time inside the loop
-
- return w;
- }
-
- String voteTallies[] = { "Lincoln", "Washington", "Adams", "Lincoln", "Washington", "Adams", "Lincoln",
- "Washington", "Adams", "Lincoln", "Washington", "Adams", "Roosevelt" };
-
- // Given an array voteTallies[], write a FOR loop that prints out each value in
- // the array.
- public int tallyVote1() {
- int w = 0;
- int numberOfVotes = voteTallies.length;
-
- // calling
- w = w + 1;
- // each time through the inner loop
-
- return w;
- }
-
- // Given an array voteTallies[], write a WHILE loop that prints out each value
- // in the array. You should declare and use an index “idx” to keep track of
- // where you are.
- public int tallyVote2() {
- int w = 0;
- int numberOfVotes = voteTallies.length;
-
- // calling
- w = w + 1;
- // each time through the inner loop
-
- return w;
- }
-
- /**
- * CONGRATS, you've written all the code. Does it all pass their tests?!?
- *
- *
- * If not, why not? :-)
- *
- *
- */
-
- /**
- * IGNORE the CODER behind the CURTAIN. These are the support routines to make
- * all the examples interesting.
- */
- // instance variables - replace the example below with your own
- private int x;
-
- /**
- * Constructor for objects of class WriteLoops
- */
- public WriteLoops() {
- // initialise instance variables
- x = 0;
- }
-
- private int gps = 0;
-
- private String gpsCurrentLocation() {
- if (this.gps > 5) {
- return "Home";
- }
- return "Not Home";
- }
-
- private void driveSomeMore() {
- this.gps += 1;
- }
-
- private int scr = 31;
-
- private int gameNextScore() {
- return this.scr = this.scr + ThreadLocalRandom.current().nextInt(20, 99 + 1);
- }
-
- private void yellAtJuniorToMowLawn() {
- /* dammit, mow the yard */}
-
- private void sendJuniorBackToSchool(String timeForSchool) {
- if (!timeForSchool.equalsIgnoreCase("First Day of School")) {
- throw new IllegalArgumentException();
- }
- /* dammit, mow the yard */}
-
- // private Supplier<Boolean> isSummer = () -> {
- // int i = 0;
- // return Supplier<Boolean> () -> {
- // i = i + 1;
- // return (i >= 3);
- // };
- // };
- private int summer = 0;
- private boolean isSummer() {
- if (summer == 3) {
- return true;
- }
- summer++;
- return false;
- }
-
- private void sendEmergencyText(String mesg, String phone) {
- }
-
- private void tryServerRestart(String mesg, String phone) {
- }
-
- int serverStatus = 5;
-
- private boolean serverIsRunning() {
- return (serverStatus < 20);
- }
-
- private void waitFor(int interval) {
- serverStatus += interval;
- }
-
- }
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