bao745077267-优快云博客

原创作业题,编写两个类:A和B,A创建的对象可以计算两个正整数的最大公约数，B创建的对象可以计算两个数的最小公倍数，要求：B类中有一个成员变量是A类声明的对象

import java.util.*;class A{public int f(int min,int max){if(min==0){ return max; }else{ return f(max%min,min); } }class B{A a=new A();public int g(int min,int

2013-03-31 09:33:10 8348 4

原创 AreaAndLength.java

class Trangle { double sideA,sideB,sideC,area,length; boolean boo; public Trangle(double a,double b,double c) { sideA=a;sideB=b;sideC=c; if(a+b>c&&a+c>b&&b+c>a)

2013-03-30 11:14:34 1855

原创 CopyArray.java

class { public static void main(String[] args) {char a[]={'a','b','c','d','e','f'};char b[]={'1','2','3','4','5','6'};int c[]={1,2,3,4,5,6};int d[]={-1,-2,-3,-4,-5,-6}; System.arrayc

2013-03-30 11:10:58 732

原创对象的组合

Rectangle.javapublic class Rectangle{private double x,y,width,height;public void setX(double x){this.x=x;}public double getX(){return x;}public void setY(double y){this.y=y;}

2013-03-30 11:06:47 684

原创 Integer类的使用方法

Interger：整数类型１、属性。 static int MAX_VALUE：返回最大的整型数； static int MIN_VALUE：返回最小的整型数； static Class TYPE ：返回当前类型。例子： System.out.println("Integer.MAX_VALUE: " + Integer.MAX_VALUE ); 结果为

2013-03-29 20:23:08 3144

原创回文数

import java.util.*;public class Number { public static void main(String args[]) { int number=0,d5,d4,d3,d2,d1;Scanner reader=new Scanner(System.in); System.

2013-03-25 22:20:32 581

原创包的创建和引入

SquarreEquation.javapackage tom.jiafei;public class SquareEquation{double a,b,c;double root1,root2;boolean boo;public SquareEquation(double a,double b,double c){this.a=a;this.b=b;t

2013-03-24 15:46:40 646

原创输入本机中文格式的日期时间

import java.util.Date;import java.text.SimpleDateFormat;public class Example4_13{public static void main(String args[]){ Date date=new Date(); SimpleDateFormat format= new SimpleDateForm

2013-03-24 14:18:08 559

原创类area的getArea方法是一个重载方法

class People{double getArea(double x,int y){return x*y;}int getArea(int x,double y){return (int)(x*y);}double getArea(float x,float y,float z){return (x*x+y*y+z*z)*2.0;}}public

2013-03-21 18:35:21 3384

原创计算等差数列的和

import java.util.*;class B{double a;double d;int n;double getSum(){double sum=n*a+n*(n-1)*d/2;return sum;}}public class Example{public static void main(String args[]){Scanner

2013-03-20 20:32:23 1412

原创 Example4_13

class Tom{void f(int x,double y){x=x+1;y=y+1;System.out.printf("参数x和y的值分别是:%d,%3.2f\n",x,y);}}public class Example4_13{public static void main(String args[]){int x=10;double y=12.5

2013-03-20 18:43:44 502

原创 Example4_8

class Jerry{int leg;Jerry(int n){leg=n;}void setLeg(int n){leg=n;}int getLeg(){ return leg;}}class Tom{void f(Jerry mouse){mouse.setLeg(12);System.out.println("在执行方法

2013-03-20 18:24:54 616

原创 Example4_9

class Circle{double radius;Circle(double r){radius=r;}double computerArea(){return 3.14*radius*radius;}void setRadius(double newRadius){radius=newRadius;}double getRadius(){r

2013-03-19 16:19:56 553

原创 Example4_10

class People{double getArea(double x,int y){return x*y;}int getArea(int x,double y){return (int)(x*y);}double getArea(float x,float y,float z){return (x*x+y*y+z*z)*2.0;}}public c

2013-03-18 19:20:45 644

原创 Example3_8

public class Example3_8{public static void main(String args[]){int n,start,end,middle;int a[]={-2,1,4,5,8,12,27,23,45,56,90,100};start=0;end=a.length;middle=(start+end)/2;int count=0;S

2013-03-17 10:11:38 515

原创 Example3_4

import java.util.*;public class Example3_4{public static void main(String args[]){Scanner reader=new Scanner(System.in);System.out.println("输入一个月份:");int n=reader.nextInt();switch(n){cas

2013-03-17 10:06:22 569

原创两个Lader对象共享bottom

class Lader{double above,height;static double bottom;void setAbove(double a){above=a;}void setBottom(double b){bottom=b;}double getAbove(){return above ;}double getBottom(){r

2013-03-17 10:00:42 582

原创速配婚姻介绍所，每次执行都有不同的结果呦！

public class Partner{public static void main(String[] args){MatchMarry group1=new MatchMarry("曹操","传明");MatchMarry group2=new MatchMarry("小六","小慧");MatchMarry group3=new MatchMarry("小花","小二货")

2013-03-13 21:26:15 513

原创使用while循环和折半法查找一个整数是否在一个排序的int类型数组中

public class Example3_8{public static void main(String args[]){int n,start,end,middle;int a[]={-2,1,4,5,8,12,27,23,45,56,90,100};start=0;end=a.length;middle=(start+end)/2;int count=0;S

2013-03-12 18:26:32 729

原创封装的思想

class Lader{double above,bottom,height;Lader(){}Lader(double a,double b,double h){above=a;bottom=b;height=h;}public void setAbove(double a){above=a;}public void setBottom(double

2013-03-12 16:35:44 705

原创使用for循环计算8+88+888+8888+88888、、、的前10项之和

import java.util.*;public class job3{public static void main(String args[]){int i=1;long sum=0,j=0,item;for(i=1;i{item=(long)java.lang.Math.pow(10,i);j=(item-1)/9*8;sum=sum+j;}Syst

2013-03-11 22:36:48 9912 1

原创将近两个点换来的成果

错误的编程：import java.util.*;public class Example3_1{ public static void main(String args[]){ Scanner reader=new Scanner(System.in); System.out.println("输入待移位的int型整数:");

2013-03-09 18:13:10 634 1

原创 Homework

import java.util.*;public class Homework2_2{ public static void main(String args[]){ Scanner reader=new Scanner(System.in); int sum=1; int m=0; while(reader.hasNextInt()){

2013-03-06 22:28:11 404

bao745077267的专栏