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Introduction
Print an Integer (Entered by the User)Add Two IntegersMultiply two Floating Point NumbersFind ASCII value of a characterCompute Quotient and RemainderSwap Two NumbersCheck Whether a Number is Even or OddFind the Frequency of Character in a StringRemove All Whitespaces from a StringRound a Number to n Decimal PlacesDecision Making and Loop
Check Whether an Alphabet is Vowel or ConsonantFind the Largest Among Three NumbersFind all Roots of a Quadratic EquationCheck Leap YearCheck Whether a Number is Positive or NegativeCheck Whether a Character is Alphabet or NotCalculate the Sum of Natural NumbersFind Factorial of a NumberGenerate Multiplication TableDisplay Fibonacci SeriesFind GCD of two NumbersFind LCM of two NumbersDisplay Characters from A to Z using loopCount Number of Digits in an IntegerReverse a NumberCalculate the Power of a NumberCheck Whether a Number is Palindrome or NotCheck Whether a Number is Prime or NotDisplay Prime Numbers Between Two IntervalsCheck Armstrong NumberDisplay Armstrong Number Between Two IntervalsDisplay Factors of a NumberMake a Simple Calculator Using switch...caseCount the Number of Vowels and Consonants in a SentenceSort Elements in Lexicographical Order (Dictionary Order)Create Pyramid and PatternFunctions
Display Prime Numbers Between Intervals Using FunctionDisplay Armstrong Numbers Between Intervals Using FunctionCheck Whether a Number can be Expressed as Sum of Two Prime NumbersFind the Sum of Natural Numbers using RecursionFind Factorial of a Number Using RecursionFind G.C.D Using RecursionConvert Binary Number to Decimal and vice-versaConvert Octal Number to Decimal and vice-versaConvert Binary Number to Octal and vice-versaReverse a Sentence Using Recursioncalculate the power using recursionArrays
Calculate Average Using ArraysFind Largest Element in an ArrayCalculate Standard DeviationAdd Two Matrix Using Multi-dimensional ArraysMultiply to Matrix Using Multi-dimensional ArraysMultiply two Matrices by Passing Matrix to a FunctionFind Transpose of a MatrixPrint an ArrayConcatenate Two ArraysConvert Character to String and Vice-VersaCheck if An Array Contains a Given ValueCollections
Join Two ListsConvert List (ArrayList) to Array and Vice-VersaConvert Map (HashMap) to ListConvert Array to Set (HashSet) and Vice-VersaSort a Map By ValuesObject and Class
Add Two Complex Numbers by Passing Class to a FunctionCalculate Difference Between Two Time PeriodsAdvanced
Convert String to DateGet Current Date/TImeConvert Milliseconds to Minutes and SecondsAdd Two DatesGet Current Working DirectoryConvert Byte Array to HexadecimalCreate String from Contents of a FileAppend Text to an Existing FileConvert a Stack Trace to a StringConvert File to byte array and Vice-VersaConvert InputStream to StringConvert OutputStream to StringLookup enum by String valueCompare StringsSort ArrayList of Custom Objects By PropertyCheck if a String is NumericJava Program to Find Transpose of a Matrix
To understand this example, you should have the knowledge of the following Java programming topics:
Transpose of a matrix is the process of swapping the rows to columns. For 2x3 matrix,
Matrix
a11 a12 a13
a21 a22 a23
Transposed Matrix
a11 a21
a12 a22
a13 a23
Example: Program to Find Transpose of a Matrix
public class Transpose {
public static void main(String[] args) {
int row = 2, column = 3;
int[][] matrix = { {2, 3, 4}, {5, 6, 4} };
// Display current matrix
display(matrix);
// Transpose the matrix
int[][] transpose = new int[column][row];
for(int i = 0; i < row; i++) {
for (int j = 0; j < column; j++) {
transpose[j][i] = matrix[i][j];
}
}
// Display transposed matrix
display(transpose);
}
public static void display(int[][] matrix) {
System.out.println("The matrix is: ");
for(int[] row : matrix) {
for (int column : row) {
System.out.print(column + " ");
}
System.out.println();
}
}
}
Output
The matrix is:
2 3 4
5 6 4
The matrix is:
2 5
3 6
4 4
In the above program, display() function is only used to print the contents of a matrix to the screen.
Here, the given matrix is of form 2x3, i.e. row = 2 and column = 3.
For the transposed matrix, we change the order of transposed to 3x2, i.e. row = 3 and column = 2. So, we have transpose = int[column][row]
The transpose of the matrix is calculated by simply swapping columns to rows:
transpose[j][i] = matrix[i][j];