Java examples of memory issues

ArrayTooBig.java

public class ArrayTooBig
{

   
    public static void main(String[] args)
    {
        String [] strs = new String[Integer.MAX_VALUE];
    }

}

HeapOutOfMemeory.java

public class HeapOutOfMemeory
{

    /**
     * Cause a Heap OutOfMemory Error 
     * 
     * @param args
     * @throws FileNotFoundException 
     */
    public static void main(String[] args) throws FileNotFoundException
    {
        
        ArrayList<PrintStream> al = new ArrayList<PrintStream>();
        Random r = new Random();
        File file = new File("docs/pg2600.txt");  //text of "war and peace" which is about 3MB
        
        long start = System.currentTimeMillis();
        
        for(;;) {
            PrintStream s = new PrintStream(file);
            al.add( s );
            
            long end = System.currentTimeMillis();
            System.out.println(end - start);
        }
        
    }

}

StackOverflow.java

public class StackOverflow {

    
    public static void main(String[] args)
    {
        recur();
    }
    
    public static void recur() {
        recur();
    }
}