How to search for a particular word in a sentence

I am actually a newbie to Java and was trying to do a small project. So, in my project, I want to allow the user to enter a sentence, and I want the program to search for particular words in the sentence and give outputs based on that. I use NetBeans to develop my applications.

My code is something like this

String Sentence=jTextField1.getText();
if (Sentence.equals("Hello")
{
jTextField2.setText("Hello was found");
}
else if (Sentence.equals("Donkey")
{
jTextField2.setText("Donkey was found");
}

I know that this code makes no sense and wont run, but I put it so that people can get a general idea of what I am trying to achieve.

Please help me.

Answer

Use .contains like so:

String Sentence = jTextField1.getText();
if (Sentence.contains("Hello")) {
    jTextField2.setText("Hello was found");
} else if (Sentence.contains("Donkey")) {
    jTextField2.setText("Donkey was found");
}