javaÓïÑÔ³ÌÐòÉè¼Æ¿ÎºóϰÌâ´ð°¸½âÎö

ÍêÃÀWORD¸ñʽ

ϰÌâ2

3£®Ê¹Óá°= =¡±¶ÔÏàͬÄÚÈݵÄ×Ö·û´®½øÐбȽϣ¬¿´»á²úÉúʲôÑùµÄ½á¹û¡£

´ð£ºÊ×ÏÈ´´½¨Ò»¸ö×Ö·û´®±äÁ¿ÓÐÁ½ÖÖ·½Ê½£º String str = new String(\String str = \£»

ʹÓá°= =¡±»áÒòΪ´´½¨µÄÐÎʽ²»Í¬¶ø²úÉú²»Í¬µÄ½á¹û£º

String str1 = \String str2 = \System.out.println(str1= =str2); //true

String str1 = new String(\String str2 = \System.out.println(str1= =str2); //false

String str1 = new String(\String str2 = new String(\System.out.println(str1= =str2); //false

Òò´Ë×Ô·û´®Èç¹ûÊǶÔÄÚÈݽøÐбȽϣ¬Ê¹ÓÃequals·½·¨±È½Ï¿É¿¿¡£ String str1 = \String str2 = \System.out.println(str1= =str2); //true

String str1 = new String(\String str2 = \

System.out.println(str1.equals(str2)); //true

String str1 = new String(\String str2 = new String(\

System.out.println(str1.equals(str2)); //true

5£®±àдһ¸ö³ÌÐò£¬°Ñ±äÁ¿nµÄ³õʼֵÉèÖÃΪ1678£¬È»ºóÀûÓóý·¨ÔËËãºÍÈ¡ÓàÔËËã°Ñ±äÁ¿µÄÿλÊý×Ö¶¼Ìá³öÀ´²¢´òÓ¡£¬Êä³ö½á¹ûΪ£ºn=1678¡£nµÄÿλÊý×ÖÊÇ1£¬6£¬7£¬8¡£

ÈônΪÈÎÒâֵĨ£¿ ·¨Ò»£º

public class Exercise5{

public static void main(String[] args){

int n=1678; int unit; int decimal; int hundred; int thousand; int count;

thousand=n/1000; count=n00;

hundred=count/100; count=count0;

decimal=count/10; count=count;

unit=count;

System.out.println(\°üº¬µÄÊý×Ö·Ö±ðÊÇ£º

\'+unit); } }

//Èç¹ûnΪÈÎÒâÖµ import java.io.*;

public class Exercise51{

public static void main(String[] args) throws IOException{

System.out.print(\ÇëÊäÈëÒ»¸öÕûÊý£º\

InputStreamReader isStream=new InputStreamReader(System.in); BufferedReader bfReader=new BufferedReader(isStream); String input=bfReader.readLine(); int length=input.length()-1; int n=new

רҵÕûÀí ֪ʶ·ÖÏí

ÍêÃÀWORD¸ñʽ

Integer(input).intValue();

while(length>=0){ int divisor=(int)

Math.pow(10,length);

length=length-1;

int output=n/divisor; n=n%divisor;

System.out.print(output+\ } } }

·¨¶þ£º(½¨ÒéʹÓÃ)

public class Exercise5{

public static void main(String[] args){

int n=1678; int unit; int decimal; int hundred; int thousand;

thousand=n/1000; hundred=n/100; decimal=n/10; unit=n;

System.out.println(\°üº¬µÄÊý×Ö·Ö±ðÊÇ£º

\'+unit); } }

//Èç¹ûnΪÈÎÒâÖµ import java.io.*;

public class Exercise51{

public static void main(String[] args) throws IOException{

System.out.print(\ÇëÊäÈëÒ»¸öÕûÊý£º\

InputStreamReader isStream=new InputStreamReader(System.in); BufferedReader bfReader=new BufferedReader(isStream); String input=bfReader.readLine(); int length=input.length()-1;

int n=new

Integer(input).intValue();

while(length>=0){ int divisor=(int)

Math.pow(10,length);

length=length-1;

int output=n/divisor; System.out.print(output+\ } } }

6.±àдJava³ÌÐò£¬½ÓÊÜÓû§ÊäÈëµÄ1-12Ö®¼äµÄÕûÊý£¬Èô²»·ûºÏÌõ¼þÔòÖØÐÂÊäÈ룬ÀûÓÃswitchÓï¾äÊä³ö¶ÔÓ¦Ô·ݵÄÌìÊý¡£ import java.io.*;

public class Exercise6{

public static void main(String[] args) throws IOException{ int n; do{

System.out.print(\ÇëÊäÈë1-12Ö®¼äµÄÕûÊý£º\

InputStreamReader isStream=new InputStreamReader(System.in); BufferedReader bfReader=new BufferedReader(isStream); String input=bfReader.readLine(); n=new Integer(input).intValue(); }while(n>12||n<1);

switch(n){

case 2: System.out.println(n+\Ô·Ý29Ìì\ case 1: case 3: case 5: case 7: case 8: case 10:

case 12: System.out.println(n+\Ô·Ý31Ìì\ case 4:

רҵÕûÀí ֪ʶ·ÖÏí

ÍêÃÀWORD¸ñʽ

case 6: case 9:

case 11: System.out.println(n+\Ô·Ý30Ìì\ } } } 7£®±àдJava³ÌÐò¼ÆËãСÓÚÒ»¸öÕûÊýµÄÈ«²¿ËØÊý²¢Êä³ö¡£

import java.io.*;

public class Exercise7{

public static void main(String[] args) throws IOException{

System.out.print(\ÇëÊäÈëÒ»¸öÕûÊý£º\

InputStreamReader isStream=new InputStreamReader(System.in); BufferedReader bfReader=new BufferedReader(isStream); String input=bfReader.readLine(); int n=new

Integer(input).intValue();

int i;

System.out.println(2); for(i=2;i

for(int j=2;j<=i/2+1;j++){ if (i%j==0) break; if (j==i/2+1)

System.out.println(i);

} } }}

9£®±àдJava³ÌÐòʵÏÖ£ºÊäÈëÒ»×éÕûÊý´æ·ÅÔÚÊý×éÖУ¬±È½Ï²¢Êä³öÆäÖеÄ×î´óÖµºÍ×îСֵ£»ÔÚ½«Êý×éÔªËØ´ÓСµ½´óÅÅÐò²¢Êä³ö¡£ import java.io.*;

public class Exercise9{

public static void main(String[] args) throws IOException{ final int N=5;

int[] intArray=new int[N]; //Êý×éµÄ¸³Öµ

for(int i=0;i

System.out.print(\Êý×éµÄµÚ\¸öÔªËØÊÇ£º\ InputStreamReader isStream=new InputStreamReader(System.in); BufferedReader bfReader=new BufferedReader(isStream);

String input=bfReader.readLine(); int n=new

Integer(input).intValue(); intArray[i]=n; }

//Çó×î´ó×îСֵ

int max=intArray[0]; int min=intArray[0];

for(int j=0;jintArray[j]) min=intArray[j]; }

System.out.println(\×î´óֵΪ£º\

System.out.println(\×îСֵΪ£º\

//´ÓСµ½´óÅÅÐò int temp;

for(int i=0;i

if(intArray[i]>intArray[j]){ temp=intArray[i];

intArray[i]=intArray[j]; intArray[j]=temp; } } }

//½«ÅÅÐòºóµÄ½á¹û´òÓ¡

System.out.println(\ÅÅÐòºóµÄÊý×éΪ£º\

for(int i=0;i

System.out.print(intArray[i]+\ } } }

רҵÕûÀí ֪ʶ·ÖÏí

ÁªÏµ¿Í·þ£º779662525#qq.com(#Ìæ»»Îª@) ËÕICP±¸20003344ºÅ-4