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1z1-819 Test Price & 1z1-819 Valid Vce Dumps

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Oracle 1z1-819 exam consists of 80 multiple-choice questions that must be completed within 180 minutes. 1z1-819 exam covers various topics such as Java syntax, data types, arrays, control flow statements, and object-oriented programming concepts such as inheritance, polymorphism, encapsulation, and abstraction. 1z1-819 Exam also tests the candidate's knowledge of Java APIs such as I/O, JDBC, and Collections.

Oracle Java SE 11 Developer Sample Questions (Q130-Q135):

NEW QUESTION # 130
Which three initialization statements are correct? (Choose three.)

A. byte b = 10;char c = b;
B. short sh = (short)'A';
C. boolean true = (4 == 4);
D. String contact# = "(+2) (999) (232)";
E. float x = 1.99;
F. int x = 12_34;
G. int[][] e = {{1,1},{2,2}};

Answer: B,F,G

NEW QUESTION # 131
Given:
Automobile.java

Car.java

What must you do so that the code prints 4?

A. Add @Override annotation in line 2.
B. Remove abstract keyword in line 1.
C. Replace the code in line 2 with Car ob = new Car();
D. Remove the parameter from wheels method in line 3.

Answer: A

Explanation:

NEW QUESTION # 132
Given the code fragment:

What is the result?

A. 13 5 7 9
B. 1 3 5 7 9 11
C. 2 4 6 8
D. 2 4 6 B 10

Answer: B

NEW QUESTION # 133
Given:

Which two are secure serialization of these objects? (Choose two.)

A. Declare fields transient.
B. Define the serialPersistentFields array field.
C. Implement only readResolve to replace the instance with a serial proxy and not writeReplace.
D. Implement only writeReplace to replace the instance with a serial proxy and not readResolve.
E. Make the class abstract.

Answer: B,C

NEW QUESTION # 134
Given the Customer table structure:
* ID Number Primary Key
* NAME Text Nullable
Given code fragment:

Which statement inserted on line 14 sets NAME column to a NULL value?

A. Stmt.setNull(2, java,sql. Types, VARCHAR);
B. Stmt.setNull(2, java.lang, string);
C. Stmt.setNull(2 string, class);
D. Stmt.setNull(2, null);

Answer: A

NEW QUESTION # 135
......

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