Oracle 1Z0-501 Actual Free Exam Questions & Community Discussion

Given:
1 . public class Foo {
2 . private int val;
3 . public foo(int v) (val = v;)}
4 . public static void main (String [] args){
5 . Foo a = new Foo (10);
6 . Foo b = new Foo (10);
7 . Foo c = a;
8 . int d = 10;
9 . double e = 10.0;
1 0. }
1 1. }
Which three logical expression evaluate to true? (Choose Three)

Given:
1 . public class X {
2 . public object m () {
3 . object o = new float (3.14F);
4 . object [] oa = new object [1];
5 . oa[0]= o;
6 . o = null;
7 . oa[0] = null;
9 . return o;
9 . }
1 0.}
When is the float object created in line 3, eligible for garbage collection?

Exhibit:
1 . import java.awt*;
2 .
3 .public class X extends Frame (
4 .public static void main(string []args)(
5 .X x = new X ();
6 . X.pack();
7 . x.setVisible(true);
8 .)
9 .
1 0. public X ()(
1 1. setlayout (new GridLayout (2,2));
1 2.
1 3. Panel p1 = new panel();
1 4. Add(p1);
1 5. Button b1= new Button ("One");
1 6. P1.add(b1);
1 7.
1 8. Panel p2 = new panel();
1 9. Add(p2);
2 0. Button b2= new Button ("Two");
2 1. P2.add(b2);
2 2.
2 3. Button b3= new Button ("Three");
2 4. add(b3);
2 5.
2 6. Button b4= new Button ("Four");
2 7. add(b4);
2 8.)
2 9. )
Which two statements are true? (Choose Two)

Given:
8 . int index = 1;
9 . boolean[] test = new Boolean[3];
1 0. boolean foo= test [index];
What is the result?

Which four types of objects can be thrown using the throw statement? (Choose Four)

Which interface does java.util.Hashable implement?

Given:
1 . public class ArrayTest {
2 . public static void main (String[]args){
3 . float f1[], f2[];
4 . f1 = new float [10];
5 . f2 = f1;
6 . System.out.printIn ("f2[0]=" + f2[0]);
7 .}
8 .}
What is the result?

CORRECT TEXT
Exhibit:
1 . public class X {
2 . public static void main (String[]args) {
3 . string s = new string ("Hello");
4 . modify(s);
5 . System.out.printIn(s);
6 .}
7 .
8 . public static void modify (String s){
9 . s += "world!";
1 0.}
1 1. }
What is the result?
E.The program runs and prints "Hello"
F.An error causes compilation to fail.
G.The program runs and prints "Hello world!"
H.The program runs but aborts with an exception.

You want subclasses in any package to have access to members of a superclass. Which is the most restrictive access modifier that will accomplish this objective?