Hollen0318的博客

Lab: Write classes to model a shopping list.Make an Item class that represents a grocery item’s name and price, such as tissues for $3.Also implement an ItemOrder class that represents a shopper’s d...

*Create a class named Calculator.A calculator has a method to add digits to a running total.The user can also press operator keys such as + or * and then enter digits of a secondnumber.When the us...

Suppose you are given a class named ClockTime with the following contents:假设你有一个包含下列内容名为“时钟时间”的组：Write an instance method advance that will be placed inside the ClockTime class. The method accepts ...

Q21.This program helps you practice multiplicationby asking you random multiplication questionswith numbers ranging from 1 to 30and counting how many you solve correctly.14 * 8 = 112Correct!5 * ...

Q21. 写一条利用for循环程序画出下面的图形。窗口大小为：170 x 170 px“spiral” 从 (0,10),向右 160,向下 150,向左 150, 向上140…import java.awt.*;//调取图形包public class Q28 {//这个实验看上去很复杂，其实是很入门的算法 public static void main(String[] args)...

Q17. Write a method named wordCount that accepts a String asits parameter and returns the number of words in that string. Wordsare separated by spaces.wordCount(“the quick brown fox”) returns 4Q1...

Q16. Write a method named areAnagrams that accepts two Strings as parameters and returns whether those strings contain the same letters (in any order).areAnagrams(“bear”, “bare”) returns trueareA...

Q14.Write a method called longestSortedSequence that accepts anarray of integers as a parameter and that returns the length ofthe longest sorted (nondecreasing) sequence of integers in the arrayQ1...

import java.util.*;import java.util.Scanner;public class Q13 { public static void main(String[] args) { // TODO Auto-generated method stub Scanner console = new Scanner (System.in); /*System....

Q12. Write a method named equals that accepts two arraysof integers as parameters and returns true if they contain exactlythe same elements in the same order, and false otherwise. Note that thearra...

Q11. Write a method named copyRange that takes as parameters two arrays a1 and a2, two starting indexes i1 and i2, and a length l,and copies the first l elements of a1 starting at index i1 into array...

Q10. Write a method named percentEven thataccepts an array of integers as a parameter and returnsthe percentage of even numbers in the array as a real number. For example, if avariable named nums...

Q9. Write a method named minGap that acceptsan integer array as a parameter and returnsthe minimum ‘gap’ between adjacent values inthe array. The gap between two adjacent valuesin a arra...

import java.io.*; import java.util.Scanner;public class Q12 { public static void main(String[] args) throws FileNotFoundException { // TODO Auto-generated method stub Scanner input = new ...

import java.io.*; import java.util.Scanner;public class Q11 { public static void main(String[] args) throws FileNotFoundException { // TODO Auto-generated method stub Scanner input = new...

import java.io.*; import java.util.Scanner;public class Q10 { public static void main(String[] args) throws FileNotFoundException { // TODO Auto-generated method stub Scanner input = new...

import java.io.*; import java.util.Scanner;public class Q9 { public static void main(String[] args) throws FileNotFoundException { // TODO Auto-generated method stub Scanner input = new ...

import java.io.*; import java.util.Scanner;public class Q8 { public static void main(String[] args) throws FileNotFoundException {//避免寻找文件失效 // TODO Auto-generated method stub Scanner in...

import java.io.*; import java.util.Scanner;import java.text.DecimalFormat;import java.text.NumberFormat;public class Q7 { public static void main(String[] args) throws FileNotFoundException {...