import org.eclipse.jdt.core.ToolFactory;
import org.eclipse.jdt.core.formatter.CodeFormatter;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.Document;
import org.eclipse.jface.text.IDocument;
import org.eclipse.text.edits.MalformedTreeException;
import org.eclipse.text.edits.TextEdit;
public class FormatterTest {
public static void main(String[] args) {
String code = "public class TestFormatter{public static void main(String[] args){System.out.println(\"Hello World\");}}";
CodeFormatter codeFormatter = ToolFactory.createCodeFormatter(null);
TextEdit textEdit = codeFormatter.format(CodeFormatter.K_COMPILATION_UNIT, code, 0, code.length(), 0, null);
IDocument doc = new Document(code);
try {
textEdit.apply(doc);
System.out.println(doc.get());
} catch (MalformedTreeException e) {
e.printStackTrace();
} catch (BadLocationException e) {
e.printStackTrace();
}
}
}