Commit555b715

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Merge pull requestTheAlgorithms#366 from Rachana040/master

Updated Matrix.java, added Transpose of a Matrix

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Lines changed: 16 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -221,4 +221,20 @@ public String toString() {`
`221`	`221`
`222`	`222`	`returnstr;`
`223`	`223`	`}`
	`224`	`+`
	`225`	`+/**`
	`226`	`+ * Returns transposed matrix of this matrix.`
	`227`	`+ *`
	`228`	`+ * @return transposed Matrix.`
	`229`	`+ */`
	`230`	`+publicMatrixtranspose() {`
	`231`	`+`
	`232`	`+int[][]newData =newint[this.data[0].length][this.data.length];`
	`233`	`+`
	`234`	`+for (inti =0;i <this.getColumns(); ++i)`
	`235`	`+for(intj =0;j <this.getRows(); ++j)`
	`236`	`+newData[i][j] =this.data[j][i];`
	`237`	`+`
	`238`	`+returnnewMatrix(newData);`
	`239`	`+}`
`224`	`240`	`}`

Lines changed: 33 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,33 @@`
	`1`	`+importjava.util.Scanner;`
	`2`	`+`
	`3`	`+/**`
	`4`	`+*A utility to check if a given number is power of two or not.`
	`5`	`+*For example 8,16 etc.`
	`6`	`+*/`
	`7`	`+publicclassPowerOfTwoOrNot {`
	`8`	`+`
	`9`	`+publicstaticvoidmain (String[]args) {`
	`10`	`+`
	`11`	`+Scannersc =newScanner(System.in);`
	`12`	`+System.out.println("Enter the number");`
	`13`	`+intnum =sc.nextInt();`
	`14`	`+booleanisPowerOfTwo =checkIfPowerOfTwoOrNot(num);`
	`15`	`+if (isPowerOfTwo) {`
	`16`	`+System.out.println("Number is a power of two");`
	`17`	`+}else {`
	`18`	`+System.out.println("Number is not a power of two");`
	`19`	`+}`
	`20`	`+}`
	`21`	`+`
	`22`	`+`
	`23`	`+/**`
	`24`	`+* Checks whether given number is power of two or not.`
	`25`	`+*`
	`26`	`+* @param number`
	`27`	`+* @return boolean`
	`28`	`+*/`
	`29`	`+publicstaticbooleancheckIfPowerOfTwoOrNot(intnumber) {`
	`30`	`+returnnumber !=0 && ((number & (number-1)) ==0);`
	`31`	`+}`
	`32`	`+`
	`33`	`+}`

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