Monthly Archives: October 2017

Transpose of Matrix in Python

import numpy as np num1 = np.array([[1,2], [3,4]]) print(num1) print(“Transpose of matrix seen now is”,num1.T) Advertisements

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Using Series in Python

import numpy as np import pandas from pandas import Series,DataFrame obj=Series([3,6,9,12]) print(obj) obj=Series([3,6,9,12],index=[0,1,2,3]) print(obj[1])

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Using Classes Python

class Employee: empcount=0; def __init__(self,name,salary,id=780): self.name=name self.salary=salary self.id=id def display(self): print(“Employee name is “,self.name,”Employee salary is “,self.salary,”Id seen is “,self.id) e=Employee(“Ashish”,200) e.display()

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Using Dictionary

dict={‘Name’:’Ashish’,’Age’:25} print(dict[‘Name’]) print(‘Age is ‘,dict[‘Age’]) print(len(dict)) dict.clear() #Delete dictionary del dict #print(dict.name)

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Print Numbers from 1 to 10 and use while loop

tup1=(“physics”,”chemitry”) print(tup1[0]) print(len(tup1)) print(max(tup1)) for letter in tup1: print(letter) i=0 while i != len(tup1): print(tup1[i]) i=i+1

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Using unmodifiable list Java 9

package test;package test; import java.util.Collections;import java.util.Iterator;import java.util.List; public class listtest { public static void main(String[] args) { // TODO Auto-generated method stub List im=List.of(“one”,”two”,”three”); List imlist=Collections.unmodifiableList(im); imlist.add(“four”); Iterator itr=imlist.iterator(); while(itr.hasNext()) { System.out.println(itr.next()); } } } In this case if you … Continue reading

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Using List.of Java 9

package test;package test; import java.util.Iterator;import java.util.List; public class ListTest { public static void main(String[] args) { List im=List.of(); Iterator itr=im.iterator(); while(itr.hasNext()) { System.out.println(itr.next()); } } }

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