help with returning the string in reverse

[thorobred]

I'm somewhat new to java and I'm trying to get a string to return in reverse which takes a String parameter, str, for example the word "hello", I want to be able to output "olleh" the code I used was :
String result = " ";

for (int k = 0; k < string.length; k++);
result(length-1-i) = str(i);
return result;

I'm not getting the output I want so if someone can help me with this I'll really appreciate it.

[ozzyman]

you ended your for loop without doing anything by adding a semi-colon at the end. remove the semi-colon and use braces like this:

for (int k=0; k<string.length; k++) {
    result(length-1-i) = str(i);
    return result;
}

i'm assuming you declared 'i' and the method result(int) somewhere else

[thorobred]

Yea, it starts like this but I need to declare i or can I replace i with k?
public String reverseString(String str)

for (int k=0; k<string.length; k++)
result(length-1-i) = str(i);
return result;

[RichersooN]

just use the String.reverse() method in the String class

[thorobred]

so I dont have to type in that for loop?

[RichersooN]

yes so that your life would be easier

[JosAH]

just use the String.reverse() method in the String class

Please don't talk nonsense; there is no reverse() method in the String class. If you want to help make sure your answer is at least correct.

kind regards,

Jos

[RichersooN]

/*
Java String Reverse example.
This example shows how to reverse a given string
*/

public class StringReverseExample {

public static void main(String args[]){
//declare orinial string
String strOriginal = "Hello World";
System.out.println("Original String : " + strOriginal);

/*
The easiest way to reverse a given string is to use reverse()
method of java StringBuffer class.
reverse() method returns the StringBuffer object so we need to
cast it back to String using toString() method of StringBuffer
*/

strOriginal = new StringBuffer(strOriginal).reverse().toString();

System.out.println("Reversed String : " + strOriginal);
}

}

/*
Output of the program would be :
Original String : Hello World
Reversed String : dlroW olleH
*/

[JosAH]

Hurray! Spoonfeeding again.

Jos

[andy9507]

This code here works great in any situation.


public String reverse(String str) {
char[] sequence = str.toCharArray();
char[] reversed = new char[sequence.length];
int j = 0;
for (int i = sequence.length - 1; i >= 0; i--) {
reversed[j] = sequence[i];
j++;
}
String returnString = new String(reversed);
return returnString;
}
}

[ozzyman]

just use the String.reverse() method in the String class

you mean StringBuffer...

String reverse = new StringBuffer(string).reverse().toString();