Which of the following statements is NOT true in Java?[Fill in the blank]

Question

BlackTom AI · Accepted Answer

The question asks which statement is NOT true in Java. I will evaluate each option in turn to understand why it is correct or incorrect.

Option a: 'A method declared as private is only accessible within the same class.' This is true. In Java, the private access modifier restricts access to the declaring class only, so private methods cannot be accessed from outside that class.

Option b: 'A field of an object exists while the object exists.' This is true. A field is part of an object’s state, and it exists as long as the object instance exists; once the object is garbage collected (or the program ends if it’s a local object), the field ceases to exist with it.

Option c: 'The scope of a local variable is within the block in which it is defined, starting from the line it is defined.' This is true in Java. A local variable is visible from its point of declaration to the end of the block. The exact wording may vary, but the essential idea—scope begins at declaration and is limited to the block—is accurate.

Option d: 'A local variable with the same name as a field will cause a compiler error.' This is false. Java allows shadowing: a local variable can have the same name as a field. Inside the method, the unqualified name refers to the local variable, and you can reference the field with this.fieldName if needed. Therefore, no compiler error occurs just from shadowing.

Option e: 'None of the above' would be incorrect because there is at least one statement that is not true (option d).

In summary, the only statement that is NOT true is option d, since shadowing a field with a local variable is permitted in Java. The other statements (a, b, c) are true, and option e is not applicable because not all statements are false.

Which of the following statements is NOT true in Java?[Fill in the blank]单项选择题

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Which of the following statements is NOT true in Java?[Fill in the blank]单项选择题

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