Matrices are nothing but it’s more than a collection of data elements arranged in a rectangular layout that is two-dimensional. In Java, an array with two dimensions can be considered as a matrix. As per the problem statement we have to subtract an element “1” to each matrix element. Let’s deep dive into this article, to know how it can be done by using Java programming language. To show you some instances Instance-1 Suppose the original matrix is {{3, 1, 2}, {2, 5, 9}, {6, 3, 10}}; After subtracting the element “1” by given matrix, the result index will ... Read More

In Java, A primitive type (i.e., int, double, float, etc.) is a basic data type that is built into the language and is not an object. Primitive types have a fixed size and can be used directly in calculations and operations. A wrapper object is nothing but an object representation of a primitive type. For example, the Integer class is a wrapper object for the int primitive type. Wrapper objects are instances of classes and have methods that can be called, while primitive types do not. However, using wrapper objects requires more memory than using primitive types, ... Read More

In Java, Object is a parent class of all the classes. So, we can directly assign a string to an object as each class is internally a child class of the Object class. A string is generally considered a data type and is often implemented as an array data structure of bytes (or words) that stores a sequence of elements, typically characters, using some character encoding. The object data type is also known as non-primitive or reference data type; these are not predefined ones; instead, we need to create them. Let’s deep dive into this article, to know how it ... Read More

In Java, smaller datatype can be converted to bigger datatype. Here, we will see how to convert int datatype to double datatype. The int data type is a 32-bit signed two's complement integer. Its value-range lies between - 2, 147, 483, 648 (-2^31) to 2, 147, 483, 647 (2^31 -1). The double data type is a double-precision 64-bit IEEE 754 floating point. Its range of values is beyond the scope of this discussion, but is specified in the Floating-Point Types, Formats, and Values section of the Java Language Specification. Let’s deep dive into this article, to know how it ... Read More

In Java, Date can be converted Timestamp by using Timestamp class. Timestamp class is present in sql package. Date only store date value whereas timestamp stores both date and time value. The TIMESTAMP data type is used for values that contain both date and time parts. TIMESTAMP has a range of '1970-01-01 00:00:01' UTC to '2038-01-19 03:14:07' UTC. Let’s deep dive into this article, to know how it can be done by using Java programming language. To show you some instances Instance-1 Suppose the input date is written on 05/01/2023. Then corresponding Timestamp is “2023-01-05 20:37:54.832”. Instance-2 ... Read More

A circle is a closed shape formed by tracing a point that moves in a plane such that its distance from a given point is constant. In this article we will check if two given circles touch or intersect each other. We will be given the two circles with center 1 i.e (x1, y1) and center 2 i.e (x2, y2) and radius R1 and R2. We need to check if the given circle collides with the other circle or not and hence five possible situation arises as mentioned below − Circle 2 lie inside circle 1 Circle 1 ... Read More

In Java, Array is an object. It is a non-primitive data type which stores values of similar data type. The matrix in java is nothing but a multi-dimensional array which represents multiple rows and columns. A matrix having non-zero elements only in the main diagonal (running from the upper left to the lower right) is called as diagonal matrix. As per the problem statement we have to a matrix and we have to check whether that given matrix is a diagonal matrix or not. Let’s deep dive into this article, to know how it can be done by using Java ... Read More

In Java, Array is an object. It is a non-primitive data type which stores values of similar data type. The matrix in java is nothing but a multi-dimensional array which represents multiple rows and columns. If the absolute value of the diagonal element in a matrix is larger than or equal to the sum of the absolute values of the other components in that row, the matrix is said to be diagonally dominating. When resolving systems of linear equations in numerical analysis, this characteristic is helpful. Even if the coefficients of the equations are not precisely known, it guarantees that ... Read More

A circle is a closed shape formed by tracing a point that moves in a plane such that its distance from a given point is constant. In this article we will check how to form the equation of circle from given radius and centre. We will be given a circle with centre i.e (x1, y1) and radius r. We need to form the equation of circle from given radius and centre. The equation of the circle is given by formula − $$\mathrm{(x-x1)^2\:+\:(y-y1)^2\:=\:r^2}$$ Now after expanding and arranging the equation we get − $$\mathrm{(x)^2\:–\:(2*x1*x)\:+\:(y)^2\:-\:(2*y1*y)\:=\:(r)^2\:-\:(x1)^2\:-\:(y1)^2}$$ Let’s start! To show you ... Read More

A Rectangle is a four sided-polygon, with opposite side equal and having all the internal angles equal to 90 degrees. In this article we will check how to find total area when two rectangles overlap each other. We will be given with two rectangle having length and breadth. Also we will we given with intersecting length and width of the two rectangles as shown in the figure − To find the total area of a rectangle we basically add areas of two rectangles. This includes the intersecting part twice, so we subtract the area of intersecting part. Total ... Read More