Understanding how large or small certain items are essential when reading engineering drawings. While most engineering drawings are created in scale versions of 1/4-1/8 inches (.55-.275 centimeters) per foot, other scales may be used for very large creations. Always determine the scale of the drawing before examining it in detail. If the scale is not obviously evident on the drawing, consult with the engineer who drew it for clarification.
In computer science, a sparse array is an array in which most of the elements have the default value (usually 0 or null). The occurrence of zero-value elements in a large array is inefficient for both computation and storage. An array in which there is a large number of zero elements is referred to as being sparse.
See an int Array example online. A few main points about arrays in Java: 1  The Array is a data structure in Java that can hold one or more values in a single variable. 2  Array in Java is a collection of similar type of values. 3  Java has two types of arrays â single dimensional and multidimensional arrays. 4  Array index starts at 0.