gistfile1.java

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;


public class ExceptionSample {
	public void f(){
		try{
			new FileInputStream(new File(""));
		}catch (FileNotFoundException e) {
			throw new RuntimeException(e); 
		}
	}
	
	public static void main(String[] args) {
		try{
			(new ExceptionSample()).f();
		}catch (Exception e) {
			if(e.getCause() instanceof FileNotFoundException){
				System.out.println("ファイルが無いよー");
			}
		}
	}
}