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CheckPalindrome.java
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64 lines (54 loc) · 1.19 KB
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package array_practice;
public class CheckPalindrome {
public static void printArray(int[] arr) {
int n = arr.length;
for(int i = 0; i < n; i++ ) {
System.out.print(arr[i] + " ");
}
System.out.println();
}
// static boolean isPalindromeFn(String str) {
//
// boolean isPalindrome = false;
//
// int lastPointer = str.length();
// int frontPointer = str.charAt(0);
//
// for(int i = 0; i < str.length(); i++) {
//
// if(frontPointer == lastPointer) {
// isPalindrome = true;
//
// }else {
// isPalindrome = false;
// break;
// }
// lastPointer = str.charAt(str.length()-i);
// frontPointer = str.charAt(i);
// System.out.println("front -> "+frontPointer);
// System.out.println("last -> "+lastPointer);
// }
//
//
// return isPalindrome;
//
// }
static boolean isPalindromeFn(String str) {
char[] ch = str.toCharArray();
int start = 0;
int end = ch.length - 1;
while(start < end) {
if(ch[start] != ch[end]) {
return false;
}
start++;
end--;
}
return true;
}
public static void main(String[] args) {
String str1 = "rar";
String str2 = "fdgfdf";
System.out.println(isPalindromeFn(str1));
}
}