How to search a string in another string?

Question

Possible Duplicate:
How to see if a substring exists inside another string in Java 1.4

How would I search for a string in another string?

This is an example of what I'm talking about:

String word = "cat";
String text = "The cat is on the table";
Boolean found;

found = findInString(word, text); //this method is what I want to know

If the string "word" is in the string "text", the method "findInString(String, String)" returns true else it returns false.

Answer 1

That is already in the String class:

String word = "cat";
String text = "The cat is on the table";
Boolean found;

found = text.contains(word);

Answer 2

Use the String.indexOf(String str) method.

From the JavaDoc:

Returns the index within this string of the first occurrence of the specified substring.

...

Returns: if the string argument occurs as a substring within this object, then the index of the first character of the first such substring is returned; if it does not occur as a substring, -1 is returned.

So:

boolean findInString(word, text)
{
  return text.indexOf(word) > -1;
}

Answer 3

word.contains(text)

Take a look at the JavaDocs.

Returns true if and only if this string contains the specified sequence of char values.

Answer 4

This can be done by using

boolean isContains = text.contains(word);

Answer 5

found = text.contains(word);