求达人帮看下代码错误

Question

import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.*;
import java.lang.*;public class compareStr{           public void compareStr(String a,String b){
                       boolean a =  InsortStr(a).equals( InsortStr(b));
     if(a)
      system.ou.println("the two strings is match");
                       else
                        system.ou.println("the two strings is not match");
                       }
           public char[] InsortStr(String a){
                      char[]c = a.toCharArray();
                     Arrays.sort(c);
   return c;
                      }
public static void main(String[] args){
           System.out.println("please input two strings split with space");
           BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
try{
                    String filename = br.readLine();
                   if (filename != null && filename.length() > 0)
                    String[] names=filename.split(" ");
            for (String name : names) {
                  system.out.println(name);
                  }
                 }catch (IOException e) {
                               e.printStackTrace();
                         } finally {
                            System.exit(0);
                        }
                     }}
红色部分编译出错，提示没有声明

Answer 1

import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.*;
import java.lang.*;public class compareStr{           public void compareStr(String a,String b){
                       boolean a =  InsortStr(a).equals( InsortStr(b));
     if(a)
      system.ou.println("the two strings is match");
                       else
                        system.ou.println("the two strings is not match");
                       }
           public char[] InsortStr(String a){
                      char[]c = a.toCharArray();
                     Arrays.sort(c);
   return c;
                      }
public static void main(String[] args){
           System.out.println("please input two strings split with space");
           BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
try{
                    String filename = br.readLine();
                   if (filename != null && filename.length() > 0)
                    String[] names=filename.split(" ");  for (String name : names) {
                  system.out.println(name);
                  }
                 }catch (IOException e) {
                               e.printStackTrace();
                         } finally {
                            System.exit(0);
                        }
                     }}

Answer 2

  public void compareStr(String a,String b){
                       boolean a =  InsortStr(a).equals( InsortStr(b));形式参数 String a 与boolean a 定义重复.

Answer 3

报什么错啊？
唯一想到的是jdk版本。检查你的JDK版本，需要JDK 1.4+。不过现在应该不太可能1.3-了

Answer 4

红色部分，报错，提示说是没有类，表达式不正，没有声明，为什么呢，同样代码在别的地方就好用啊，java新人不怎么会啊

Answer 5

public class CompareStr {
public void compareStr(String a, String b) {
boolean tmp = InsortStr(a).equals(InsortStr(b));
if (tmp)
System.out.println("the two strings is match");
else
System.out.println("the two strings is not match");
} public char[] InsortStr(String a) {
char[] c = a.toCharArray();
Arrays.sort(c);
return c;
} public static void main(String[] args) {
System.out.println("please input two strings split with space");
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
try {
String filename = br.readLine();
if (filename != null && filename.length() > 0) {
String[] names = filename.split(" ");
for (String name : names) {
System.out.println(name);
}
}
} catch (IOException e) {
e.printStackTrace();
} finally {
System.exit(0);
}
}
}

Answer 6

 public void compareStr(String a,String b)方法中的a和形式参数String a重复啊

Answer 7

简单改了一下，首先你程序里面就有很多拼写错误，这是不应该的，像这里：
system.ou.println("the two strings is match");应该是System.out.println("the two....");
注意java区分大小写，并且类名不能写错，System是一个类不能写为system，out是它的字段也不能写错；import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.*;public class Comparestr{           public void compareStr(String a,String b){
                       boolean tmp =  InsortStr(a).equals( InsortStr(b));
         if(tmp)
          System.out.println("the two strings is match");
                       else
                        System.out.println("the two strings is not match");
                       }
           public char[] InsortStr(String a){
                      char[]c = a.toCharArray();
                     Arrays.sort(c);
       return c;
                      }
public static void main(String[] args){
           System.out.println("please input two strings split with space");
           BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    try{
                    String filename = br.readLine();
                   String[] names = null;
if (filename != null && filename.length() > 0)
                     names=filename.split(" ");
               for (String name : names) {
                  System.out.println(name);
                  }
                 }catch (IOException e) {
                               e.printStackTrace();
                         } finally {
                            System.exit(0);
                        }
                     }}

Answer 8

运行结果：
please input two strings split with space
String//这是输入的String

Answer 9

import java.io.*;
import java.util.*;
public class compareStr{           public void compareStr(String a,String b){
                       boolean m =  Arrays.equals(InsortStr(a),InsortStr(b));
     if(m)
      System.out.println("the two strings is match");
                       else
                        System.out.println("the two strings is not match");
                       }
           public char[] InsortStr(String a){
                      char[]c = a.toCharArray();
                     Arrays.sort(c);
   return c;
                      }
public static void main(String[] args){
           System.out.println("please input two strings split with space");
           BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
try{
                    String s = br.readLine();
                   System.out.println(s);
String[] names = s.split(" ");
                  for (int i=0;i<names.length;i++ ) {
System.out.println(names[i]);
                 
}
                 }catch (IOException e) {
                               e.printStackTrace();
                         } finally {
                            System.exit(0);
                        }
compareStr(names[0],names[1]);
                     }

}

Answer 10

import java.io.*;
import java.util.*;
public class compareStr{           public void compareStr(String a,String b){
                       boolean m =  Arrays.equals(InsortStr(a),InsortStr(b));
     if(m)
      System.out.println("the two strings is match");
                       else
                        System.out.println("the two strings is not match");
                       }
           public char[] InsortStr(String a){
                      char[]c = a.toCharArray();
                     Arrays.sort(c);
   return c;
                      }
public static void main(String[] args){
           System.out.println("please input two strings split with space");
           BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
try{
                    String s = br.readLine();
                   System.out.println(s);
String[] names = s.split(" ");
                  for (int i=0;i<names.length;i++ ) {
System.out.println(names[i]);
                 
}
                 }catch (IOException e) {
                               e.printStackTrace();
                         } finally {
                            System.exit(0);
                        }
compareStr(names[0],names[1]);
                     }

}
运行到main中的compareStr时出现说names[0],names[1],找不到符号，这是为什么呢

Answer 11

运行到main中的compareStr时出现说names[0],names[1],找不到符号，这是为什么呢
因为你的names[]是在try{}catch{}语句块里面定义的，你在它之外引用当然找不到咯，