testpalindrome.java

是<java程序设计>的课后作业2-8源码.可以供初学者参考,作了解java基础语法所用.

/**
 * @(#)TestPalindrome.java
 *
 * TestPalindrome application
 *
 * @author 
 * @version 1.00 2009/3/21
 */
 
public class TestPalindrome {
    
    public static void main(String[] args) {
    	
    	
    	String testString1="Abccba";
    	
    	System.out.println(testString1+" is palindrome ignoring case? "
    		+checkPalindromeIgnoreCase(testString1));
    		
    	String testString2="AABcdbaa";
    	
    	System.out.println (testString2+" is palindrome ignoring case? "+
    		checkPalindromeIgnoreCase(testString2));
    	
    	System.out.println("Hello World!");
    }
    
    public static boolean checkPalindromeIgnoreCase(String s)
    {
    	//转化为小写字符串
    	String testString=s.toLowerCase();
    	
    	//初始化头与尾索引
    	int low=0;
    	int high=testString.length()-1;
    	
    	while(low<high)
    	{
    		if(testString.charAt(low)!=testString.charAt(high))
    			return false;
    		low++;
    		high--;
    	}
    	
    	return true;
    }
}