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Oracle 1Z0-501 Exam Syllabus Topics:

Oracle Java Certified Programmer Sample Questions:

1. Exhibit:
1 . public class X {
2 . public static void main (String[]args){
3 . int [] a = new int [1]
4 . modify(a);
5 . System.out.printIn(a[0]);
6 .}
7 .
8 . public static void modify (int[] a){
9 .a[0] ++;
1 0.}
1 1. }
What is the result?

A) An error "possible undefined variable" at line 9 causes compilation to fail.
B) The program runs and prints "0"
C) An error "possible undefined variable" at line 4 causes compilation to fail.
D) The program runs and prints "1"
E) The program runs but aborts with an exception.

2. Given:
1. public class OuterClass {
2. private double d1 1.0;
3. //insert code here
4. }
You need to insert an inner class declaration at line2. Which two inner class declarations are valid? (Choose Two)

A) public abstract class InnerOne {
public abstract double methoda();
}
B) protected class InnerOne {
static double methoda() {return d1;}
}
C) static class InnerOne {
static double methoda() {return d1;}
}
D) private class InnerOne {
public double methoda() {return d1;}
}
E) static class InnerOne {
public double methoda() {return d1;}
}

3. Given:
1 . public class WhileFoo {
2 . public static void main (String []args){
3 . int x= 1, y = 6;
4 . while (y--){x--;}
5 . system.out.printIn("x=" + x "y =" + y);
6 .}
7 . }
What is the result?

A) The output is x = 6 y = 0
B) The output is x = 7 y = -1
C) The output is x = 7 y = 0
D) Compilation will fail.
E) The output is x = 6 y = -1

4. Which can be used to decode charS for output?

A) Java.io.InputStreamWriter.
B) Java.io.BufferedInputStream.
C) Java.io.InputStream.
D) Java.io.EncodedReader.
E) Java.io.InputStreamReader.

5. Given:
1 . //point X
2 . public class foo (
3 . public static void main (String[]args) throws Exception {
4 . printWriter out = new PrintWriter (new
5 . java.io.outputStreamWriter (System.out), true;
6 . out.printIn("Hello");
7 . }
8 . )
Which statement at PointX on line 1 allows this code to compile and run?

A) Include java.io.PrintWriter;
B) No statement is needed.
C) Import java.io.PrintWriter;
D) Import java.io.OutputStreamWriter;
E) Include java.io.OutputStreamWriter;

Solutions: