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1z0-811 — Free Practice Questions

10 free sample questions from a bank of 42, with the correct answers and explanations. No signup required — start practising right now.

1Which statement is true about primitive variables?
  • They can be compared with the == operator.
  • They can be compared with the equals method only.
  • They cannot be compared.
  • They can be compared with the compareTo method only.
Answer: A
2Given the code fragment: Which code fragment, when inserted at line n1, enables the code to print Java Programming:1?
1z0-811 question 2
  • System.out.println(name + “:” + count);
  • System.out.println(c.name + “:” + count);
  • System.out.println(c.name + “:” + Course.count);
  • System.out.println(Course.name + “:” + c.count);
Answer: C
3Given: Why does the compilation fail?
1z0-811 question 3
  • The option variable is not initialized.
  • The order of case labels is incorrect.
  • The option data type is incorrect.
  • The break statement is missing.
Answer: C
4Given: What is the result?
1z0-811 question 4
  • [null:-]
  • [ : ]
  • [null:null]
  • [:null]
Answer: A
5Which two Java reserved words are used to implement encapsulation?
  • final
  • static
  • public
  • extends
  • private
Answer:
6Given the code fragment: Which code fragment can be inserted at line n1 to enable the code to print 0.0?
1z0-811 question 6
  • Ball b = null; b.weight = 0.0;
  • Ball.weight = 0.0;
  • Ball b = new Ball(0.0);
  • Ball b = new Ball();
Answer: D
7Which two statements are true about the Java Runtime Environment (JRE)?
  • It is responsible for garbage collection.
  • It interprets bytecode stored in a .class file.
  • It contains the JDK and Java APIs.
  • It is platform independent.
  • You must install the JRE to compile a .java file.
Answer:
8Identify two features of Java.
  • architecture dependent
  • platform independent
  • single threaded
  • robust
Answer:
9Given the code fragment: What is the result?
1z0-811 question 9
  • A compilation error occurs.
  • A runtime exception is thrown.
  • Julia - Peter
  • Peter - Julia
Answer: A
10Given: And the code fragment: What is the result?
1z0-811 question 101z0-811 question 10
  • A compilation error occurs at line n1.
  • White : null
  • null: null
  • White : White
Answer: A
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