2013-12-12 作业

1.分割char数组，比如输入1,5,则将下标为1到5之间的字符返回。

import java.util.Scanner;
public class splitChar{
public static void main(String args[]){
 int startid,endid;
 char []arraychar={'a','c','d','v','x'};
 System.out.println("请输入数组开始下标：");
 Scanner s=new Scanner(System.in);
 startid=s.nextInt();
 System.out.println("请输入数组结束下标：");
 Scanner e=new Scanner(System.in);
 endid=e.nextInt();
 System.out.println("分割后的字符数组为：");
  if(startid>=0&&startid<=arraychar.length-1&&endid>=0&&endid<=arraychar.length-1&&startid<=endid){
 for(int i=startid;i<=endid;i++){
 System.out.print(arraychar[i]);   
 }
}else{
 System.out.println("开始下标或结束输入下标有误，无法分割字符数组：");
}
} 
}

2.char数组分割，如果以传入字符串为基准分割，如{'a','b','a','c','b','d'}分割成{'a'},{'a','c'},{'d'}三个char数组

 import java.util.Scanner;
public class splitCharByletter{
public static void main(String args[]){
 char splitc;
 int j=0;
 int flag=0;
 int flaga=0;
 char []arraychar={'d','c','d','1','x','d'};
 int []splitcharA=new int[10];
 int []splitchar;
 System.out.println("请输入数组分割字符：");
 Scanner s=new Scanner(System.in);
 splitc=s.next().charAt(0);

  for(int i=0;i<arraychar.length;i++){
   if(arraychar[i]==splitc){
    splitcharA[j]=i;
    j++;
   }
  }
  splitchar=new int[j];
  for(int i=0;i<splitchar.length;i++){
   splitchar[i]=splitcharA[i];
  } 
 System.out.print("分割后数组如下：");
  for(int i=0;i<splitchar[0];i++){
    System.out.print(arraychar[i]);
  }
   if(splitchar.length>0){
  for(int i=0;i<splitchar.length-1;i++){
   System.out.print(" ");
   for(int a=splitchar[i]+1;a<splitchar[i+1];a++)
   System.out.print(arraychar[a]);
  }
  }
  for(int i=splitchar[splitchar.length-1]+1;i<arraychar.length;i++){
  System.out.print(arraychar[i]); 
  } 
} 
}