正好今天不忙,就当回忆回忆历史吧,呵呵。
public class Animal {
private String name;
private int legs;
public Animal(){
this("AAA",4);
}
public Animal(String name, int legs){
this.name = name;
this.legs = legs;
}
public String getName() {
return name;
}
public int getLegs() {
return legs;
}
public void move(){
System.out.println(this.name+" Moving!!");
}
public void move(int n){
if(n<0)
return;
for (int i = 0; i < n; i++) {
System.out.println(this.name+" Moving!!");
}
}
}
public class Fish extends Animal {
public Fish(String name){
super(name,0);
}
public void move() {
System.out.println(getName()+" Swimming!!");
}
}
public class Bird extends Animal {
public Bird(String name){
super(name,2);
}
public void move() {
System.out.println(getName()+" Flying!!");
}
}
public class Zoo {
/**
* @param args
*/
public static void main(String[] args) {
Animal animal = new Animal();
Fish fish = new Fish("shayu");
Bird bird = new Bird("dayan");
}
}
2. Java 编写程序package java06_12;import java.util.Scanner;public class PrintTriangle { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub System.out.println("请输入一个奇数.."); while (true) { Scanner in = new Scanner(System.in); try { int num = in.nextInt();// 获得输入的数字 if(num > 0 && (num % 2) == 1) {//如果输入的数字大32313133353236313431303231363533e59b9ee7ad9431333262363034于0且是奇数 for(int i = 1; i <= num; i += 2) { printNum(i, num);//按1,3,5。
的顺序打印数据 } break;//打印完退出 } else { System.out.println("请输入一个奇数,谢谢!"); continue;//如果不是大于0的奇数,重新输入 } } catch (Exception e) { System.out.println("请输入一个奇数,谢谢!"); continue;// 如果不是数字,重新输入 } } } public static void printNum(int num, int max) { String str = ""; for(int j = 1; j <= (max - num) / 2; j++) { str += " ";//在数字前面加空格 } for(int i = 1; i <= num; i++) { str += num;//数字 } for(int j = 1; j <= (max - num) / 2; j++) { str += " ";//数字后面的空格 } System.out.println(str); }}写的只要是奇数都行..如果要1-9的加个判断就行了哈..。
3. JAVA程序怎么写正好今天不忙,就当回忆回忆历史吧,呵呵。
public class Animal { private String name; private int legs; public Animal(){ this("AAA",4); } public Animal(String name, int legs){ this.name = name; this.legs = legs; } public String getName() { return name; } public int getLegs() { return legs; } public void move(){ System.out.println(this.name+" Moving!!"); } public void move(int n){ if(n<0) return; for (int i = 0; i < n; i++) { System.out.println(this.name+" Moving!!"); } }}public class Fish extends Animal { public Fish(String name){ super(name,0); }public void move() { System.out.println(getName()+" Swimming!!"); }}public class Bird extends Animal { public Bird(String name){ super(name,2); } public void move() { System.out.println(getName()+" Flying!!"); }}public class Zoo { /** * @param args */ public static void main(String[] args) { Animal animal = new Animal(); Fish fish = new Fish("shayu"); Bird bird = new Bird("dayan"); }}。
4. 这个java程序怎么写public class Book {
private String name;//名称属性
private Integer page; //页数属性
public Book(String name,Integer page){//带参数的构造方法
this.name = name;
this.page = page;
}
//属性的get,set方法
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getPage() {
return page;
}
public void setPage(Integer page) {
this.page = page;
}
//get,set方法结束
/**
* @param args
*/
public static void main(String[] args) {
Map map = new HashMap(); //定义MAP
for (int i = 0; i
5. java程序编写public class Calculate{ public static void main(String[] args){ int x = Integer.parseInt(args[0]); if(x<0){System.out.println("y="+(2*x-1));} else if(x==0){System.out.println("y=-1");} else if(x>0){System.out.println("y="+(3*x-1));} }}。
6. 用java编写程序/** * 学生类 * @author kingcs * */class Student{ // 成员变量学号(学号为最终变量) public final String stuNo = "No10000001"; // 年龄 public int stuAge; // 姓名 public String stuName; // 班级 public String stuClass; // 学校 public School stuSchool; // 构造方法以完成对学生对象的初始化 public Student(){ this.stuAge = 22; this.stuName = "张三"; this.stuClass = "三(1)班"; School sch = new School(); sch.schName = "北京一中"; this.stuSchool = sch; } // 添加成员方法getInfo() public void getInfo(){ System.out.println("学生编号:" + this.stuNo + " 学生姓名:" + this.stuName + " 学生年龄:" + this.stuAge + " 所在班级:" + this.stuClass + " 所在学校:" + this.stuSchool.schName); }}/** * 学校类 * @author kingcs * */class School{ // 学校名称 public String schName;}/** * 测试类 * @author kingcs * */public class Test_student_school { // main方法 public static void main(String[] args) { // 创建一个学生对象 Student stu = new Student(); // 并验证学生类中所有方法 stu.getInfo(); }}// 结果学生编号:No10000001 学生姓名:张三 学生年龄:22 所在班级:三(1)班 所在学校:北京一中你要的可能是这样的,希望能够帮助你。
7. java 程序编写 import java.util.Scanner;public class TestOut { public static void main(String[] args) { Scanner input=new Scanner(System.in); System.out.println("请输入一个单词:"); String InputWord =input.next(); for(int i=0;i