2013-10-28 作业

1.定义一char数组字符，然后判断是否为回文。

import java.util.Scanner;
public class judgeHuiwen{ 
public static void  main(String args[]){
char[] array;
char[] comparearray;
int i,j;
String myString;
int charlength;
System.out.println("input array :");
 Scanner s = new Scanner(System.in);
 myString=s.next();
 charlength=myString.getBytes().length;
 comparearray=new char[charlength];
 array=new char[charlength];
for(i=0;i<charlength;i++){
  array[i] = myString.charAt(i);
}
for(j=charlength-1;j>=0;j--){
 comparearray[charlength-1-j]=array[j];
}
for(i=0;i<charlength;i++){
 if(comparearray[i]!=array[i]){
  System.out.println("此字符数组不是回文");
  break;
 }
 if(i==charlength-1){
  System.out.println("此字符数组是回文");
 } 
}
 }  
}
  

 2.定义一char数组字符，然后将字符倒置输出。

import java.util.Scanner;
public class inversionChar{
public static void  main(String args[]){
char[] array;
char[] inversionarray;
int i,j;
String myString;
int charlength;
System.out.println("input array :");
 Scanner s = new Scanner(System.in);
 myString=s.next();
 charlength=myString.getBytes().length;
 inversionarray=new char[charlength];
 array=new char[charlength];
for(i=0;i<charlength;i++){
  array[i] = myString.charAt(i);
}
for(j=charlength-1;j>=0;j--){
 inversionarray[charlength-1-j]=array[j];
}
System.out.println("output inversion array :");
for(i=0;i<charlength;i++){
System.out.print(inversionarray[i]);
}
 } 
}