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ZhangGuizhu是个好老师！

题目要求：

代码如下，有四个class文件：

package chTwoWorks;import java.util.Scanner;public class SeparatingDigits {    public static void main(String[] args) {        // TODO Auto-generated method stub        Scanner input = new Scanner(System.in);        int[] digit = new int[6];        int number = input.nextInt();        for(int i=4;i>=0;i--) {            digit[i] = number%10;            number /= 10;        }        for(int i=0;i<=4;i++) {            System.out.printf("%d ",digit[i]);        }        input.close();        System.exit(0);    }}

package chTwoWorks;public class TableOfSquaresAndCubes {    public static void main(String[] args) {        // TODO Auto-generated method stub        System.out.println("number  square  cube   ");        for(int number = 0;number <= 10;number ++) {            System.out.printf("%-8d%-8d%-8d\n",number,number*number,number*number*number);        }        System.exit(0);    }}

package chThreeWorks;//Exercise 3.11 Solution: Account.javapublic class Accounts {    private double balance;    private String name;    public  Accounts(String name, double balance) {        this.name = name;// assign name to instance variable name        if(balance > 0.0)            this.balance = balance;    }    public void deposit(double depositAmount) {         if(depositAmount > 0.0)             balance += depositAmount;     }    public void withdraw(double withdrawalAmount) {        if(withdrawalAmount > balance)            System.out.println("Balance is not enough!");        else            balance -= withdrawalAmount;    }    public double getBalance() {        return balance;    }    public String getName() {        return name;    }}

package chThreeWorks;//Exercise 3.11 Solution: AccountTest.java import java.util.Scanner;public class AccountTest {    public static void main(String[] agrs) {        //define two accounts        Accounts account1 = new Accounts("HuangTao",100.0);        Accounts account2 = new Accounts("WangYuchen",-17.5);        //print accounts & balance        System.out.printf("%s Balance: ¥ %.2f \n",account1.getName(),account1.getBalance());        System.out.printf("%s Balance: ¥ %.2f \n\n",account2.getName(),account2.getBalance());        Scanner input = new Scanner(System.in);        double depositAmount;        double withdrawalAmount;        //account1 deposit & withdraw        System.out.print("Enter the deposit amount of account1: ");        depositAmount = input.nextDouble();        account1.deposit(depositAmount);        System.out.printf("%s Balance: ¥%.2f \n\n",account1.getName(),account1.getBalance());        System.out.print("Enter the withdrawal amount of account1: ");        withdrawalAmount = input.nextDouble();        account1.withdraw(withdrawalAmount);        System .out.printf("%s Balance: ¥%.2f \n\n",account1.getName(),account1.getBalance());        //account2 deposit & withdraw        System.out.print("Enter the deposit amount of account2: ");        depositAmount = input.nextDouble();        account2.deposit(depositAmount);        System.out.printf("%s Balance: ¥%.2f \n\n",account2.getName(),account2.getBalance());        System.out.print("Enter the withdrawal amount of account1: ");        withdrawalAmount = input.nextDouble();        account2.withdraw(withdrawalAmount);        System .out.printf("%s Balance: ¥%.2f \n\n",account2.getName(),account2.getBalance());        input.close();        System.exit(0);    }}