Java Array Size and Loop Quiz

To determine the size of a Java array, query its length property.

exampleArraySize = exampleArray.length; System.out.println(" " + exampleArraySize ); //The Java array length example prints out the number 5

Array length in Java is a property, not a method. That means you can’t follow the word length with round brackets.

<p>To set the size of a Java array, explicitly state the intended capacity of the array when you initialize it with the new keyword.</p> Signup and view all the answers

<p>Using the new keyword like this permanently sets the Java array size. However, all elements are initially set to null, or to zero if it is an array of primitive types.</p> Signup and view all the answers

<p>The size of a Java array is accessed using its length property. An example of accessing the size of a Java array in code is: int[] exampleArray = {1, 2, 3, 4, 5}; int exampleArraySize = exampleArray.length; System.out.print(&quot; &quot; + exampleArraySize ); //The Java array length example prints out the number 5</p> Signup and view all the answers

<p>The size of a Java array is set by explicitly stating the intended capacity of the array when initializing it with the new keyword. The syntax for setting the size of a Java array is: int[] exampleArray = new int[3];</p> Signup and view all the answers

<p>It is important to note that the array length in Java is a property, not a method. This means that the word 'length' cannot be followed by round brackets.</p> Signup and view all the answers

<p>Using the new keyword to set the size of a Java array permanently allocates the specified capacity for the array. However, all elements are initially set to null, or to zero if it is an array of primitive types.</p> Signup and view all the answers

<p>The syntax for initializing a Java array with a specific size using the new keyword is: int[] exampleArray = new int[5];</p> Signup and view all the answers

<p>You can find the size of a Java array by querying its length property. For example, if you have an array called 'exampleArray', you can access its size using 'exampleArray.length'.</p> Signup and view all the answers

<p>The correct syntax for setting the size of a Java array during initialization is to use the 'new' keyword followed by the intended capacity of the array. For example, to set the size of an integer array to three, you would use 'int[] exampleArray = new int[3];'.</p> Signup and view all the answers

<p>The array length in Java is a property, not a method. This means that it is accessed using the dot notation without round brackets, like 'exampleArray.length'.</p> Signup and view all the answers

<p>Using the 'new' keyword to set the size of a Java array permanently allocates the intended capacity to the array. However, all elements are initially set to null, or to zero if it is an array of primitive types.</p> Signup and view all the answers

<p>No, you cannot use round brackets with the 'length' property of a Java array, as it is a property and not a method. Therefore, you would access the length using 'exampleArray.length' without round brackets.</p> Signup and view all the answers

<p>To access the size of a Java array in code, you query its length property. The length property represents the number of elements in the array.</p> Signup and view all the answers

<p>The syntax for explicitly setting the size of a Java array when initializing it with the new keyword is: int[] exampleArray = new int[size];, where size is the intended capacity of the array.</p> Signup and view all the answers

<p>The array length in Java is a property, not a method. This means that you can't follow the word length with round brackets when accessing the size of a Java array.</p> Signup and view all the answers

<p>Using the new keyword to set the size of a Java array permanently initializes the array with the specified size. However, all elements are initially set to null, or to zero if it is an array of primitive types.</p> Signup and view all the answers

<p>The intended capacity of a Java array is the size that is specified when initializing the array using the new keyword. For example, int[] exampleArray = new int[capacity]; sets the intended capacity of exampleArray to capacity.</p> Signup and view all the answers

<p>To access the size of a Java array in code, you can query its length property. The important distinction to note is that array length in Java is a property, not a method. This means you can't follow the word length with round brackets.</p> Signup and view all the answers

<p>The syntax for explicitly setting the size of a Java array when initializing it with the new keyword is: int[] exampleArray = new int[3]; // Set the Java array size to three</p> Signup and view all the answers

<p>Using the new keyword to set the size of a Java array permanently allocates memory for the specified number of elements. For arrays of primitive types, the initial values of the elements are set to 0, and for arrays of objects, the initial values of the elements are set to null.</p> Signup and view all the answers

<p>The size of a Java array is accessed by querying its length property. An example of accessing the size of a Java array in code is: int[] exampleArray = {1, 2, 3, 4, 5}; int exampleArraySize = exampleArray.length; System.out.print(&quot; &quot; + exampleArraySize); // The Java array length example prints out the number 5</p> Signup and view all the answers

<p>To set the size of a Java array, you explicitly state the intended capacity of the array when you initialize it with the new keyword. The important distinction about the array length in Java is that it is a property, not a method, so round brackets cannot be used with it.</p> Signup and view all the answers