liuye1114019477-优快云博客

原创斐波那契数列

class Feibo {public static void main(String[]args) {System.out.println("view(5)="+view(5));}public static long view(int n) {if(nif(n==1||n==2) return 1;long f1=1;long f2=2;long k=0;

2013-07-19 13:29:19 394

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); Sys

2013-03-31 22:04:22 496

原创复制数组

class CopyArray{ 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}; Syst

2013-03-31 22:03:24 399

原创猜猜数的大小

import java.util.*;public class GuessNumber{ public static void main (String args[ ]) { System.out.println("给你一个1至100之间的整数,请猜测这个数"); int realNumber=(int)(

2013-03-31 22:01:34 573

原创 3_8

import java.util.Scanner;public class Example3_8{public static void main(String args[]){int n,start,end,middle;int a[]={-2,1,4,5,8,12,17,23,45,56,90,100};start=0;end=a.length;middle=(sta

2013-03-24 22:01:21 498

原创 3_7

public class Example3_7{ public static void main(String args[]){ int sum=0,i=0,max=8888,number=7; while(true){ i++; sum=sum+i; if(sum>=max) break; }

2013-03-24 21:59:03 336

原创 3_6

public class Example3_6{ public static void main(String args[]){ int sum,i,j; for(i=1;i for(j=1,sum=0;j if(i%j==0){ sum=sum+j; } } if(sum

2013-03-24 21:56:59 354

原创 3_5

public class Example3_5{ public static void main(String args[]){ double sum=0,item=1; int i=1; while(i sum=sum+item; i++; item=item*(1.0/i); } sum=sum+

2013-03-24 21:53:34 522

原创 3_3

import java.util.*;public class Example3_3{ public static void main(String args[]){ Scanner reader=new Scanner(System.in); double a=0,b=0,c=0; System.out.printf("输入边a:");

2013-03-24 21:49:50 377

原创 3_4

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

2013-03-24 21:47:01 429

原创 3_2

public class Example3_2{public static void main(String args[]){char a[]={'金','木','水','火','土'};char secret='z';for(int i=0;ia[i]=(char)(a[i]^secret);}System.out.printf("密文:\n");for(int

2013-03-24 21:44:44 387

原创 3_1

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:");int x=reader.nextInt();System.ou

2013-03-24 21:42:00 411

原创 2_4

import java.util.*;public class Example2_4{ public static void main(String[] args) { Scanner reader=new Scanner(System.in); double sum=0; int m=0; while(reader.hasNextDouble()){ d

2013-03-24 21:37:30 379

原创 Tom

class Tom { int leg; String head; void cry(String s){ System.out.println(s); }}public class Example{ public static void main(String args[]){ Tom cat; cat=new Tom(); cat.leg=4

2013-03-17 23:30:40 445

原创 Example2_3

public class AS{ public static void main(String arg[]){ char c='A'; float f=123.456789f; double d=123456.12345678; long x=5678; System.out.printf("%c%n%10.3f%n%f,%12d%n%d",c,f,d,x,x=x+2);

2013-03-17 23:29:30 408

原创 Example2_2

public class Example2_2{ public static void main (String arg[]){ byte a=120; short b=130; int c=2200; long d=8000; float f; double g=0.1234567812345678; a=(byte)b; c=(int)d; f=(flo

2013-03-17 23:27:16 471

原创书上Hello 例题的改进

例题class A{ void f(){ System.out.println("I am A"); }}class B {}public class Hello{public static void main (String args[]){ System.out.println("你好，很高兴学习 Java"); A a=new A();

2013-03-16 11:24:45 386

原创我的java环境变量配置

我是安装在F盘里 Path F:\java\bin;%JAVA_HOME%\bin;%JAVA_HOME%\jre\bin; 要加F:\java\bin;

2013-03-16 10:23:25 373

原创 java 课后题2—2

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

2013-03-11 22:42:38 429

转载 JAVA与C/C++的区别

Java程序中的每个变量要么是基本数据类型（boolean, char, byte, short, int, long, float, double），要么是对对象的引用C++有许多种基本类型，额外还有struct, union, enum, 数组和指针，C++指针可以指向对象，也可以不指向对象Java没有枚举、联合类型，因为Java认为没有必要。将可有可无的语言元素去掉是Java

2013-03-05 16:59:08 391

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