StringChecker.java

public class StringChecker {
	private String word;
	
	public StringChecker() {
		setString("");
	}
	public StringChecker(String s) {
		setString(s);
	}
	
	public void setString(String s) {
		word = s;
	}
	
	public boolean findLetter(char c) {
		if(word.indexOf(c) != -1) {
			return true;
		}
		else {
			return false;
		}
	}

	public boolean findSubString(String s) {
		if(word.indexOf(s) != -1) {
			return true;
		}
		else {
			return false;
		}
	}
}