一、编写一个JAVA小程序

import java.util.Arrays;

import java.util.Random;

public class Test {

public static void main(String[] args) {

int array[] = {1,4,5,3,2,0};

//没有排序前的输出

for (int i = 0; i < array.length; i++) {

System.out.print(array[i]);

}

System.out.println();

Arrays.sort(array);//进行排序

//排序后的输出

for(int j = 0; j< array.length; j++){

System.out.print(array[j]);

}

}

}

这样条件就都满足了，需要改进可以给我发消息。

二、用C#编写一个小程序

Console.WriteLine(请输入：);

string str = Console.ReadLine();

if (str.Length < 4)

{

Console.WriteLine(请输入长度大于3字符串！请重试..);

GetString();

}

else

{

Console.WriteLine(接收到的字符串： + str.ToString() + ;长度为： + str.Length.ToString());

Console.WriteLine(第一个出现字母a的位置： + str.IndexOf(a).ToString());

Console.WriteLine(第三个字符后面插入子串“hello”后： + str.Insert(3, hello).ToString());

Console.WriteLine(把“hello”替换成“me”后： + str.Replace(hello, me).ToString());

string[] arr = str.Split(new char[] { 'm' });

for (int i = 0; i < arr.Length; i++)

{

Console.WriteLine(分离后的[ + i.ToString() + ]字符串： + arr[i].ToString());

}

}

三、用java 写一个小程序

String str= new String(I am tomato);

byte[] b = new byte[str.length()];

for(int i=0; i

四、用java编写一个小程序

import java.util.*;

public class TestComparable {

public static void main(String[] args) {

List s = new ArrayList();

s.add(new Name(wang,fei));

s.add(new Name(wang,hong));

s.add(new Name(yang,lin));

s.add(new Name(li,ju));

s.add(new Name(liu,feng));

Collections.sort(s);

System.out.println(s);

}

}

class Name implements Comparable {

String firstName;

String lastName;

Name(String firstName,String lastName) {

this.firstName=firstName;

this.lastName=lastName;

}

public boolean equals(Object obj) {

if(obj instanceof Name) {

Name n = (Name)obj;

return (firstName.equals(n.firstName))&& (lastName.equals(n.lastName)) ;

}

return super.equals(obj);

}

public int compareTo(Object obj) {

Name nn = (Name)obj;

int last=lastName.compareTo(nn.lastName);

int first=firstName.compareTo(nn.firstName);

return (first!=0 ? first : last) ;

}

public String toString() {

return firstName+ +lastName;

}

}