Knowledge in Java Server Pages
Java Server Pages
This is a pptx on Jsp wjich contains introduction, its life cycle and example on it.
kaushal shah
What is JSP (Java Server Page) in Java ?
Explain about life cycle of jsp Visit for more information
Manthan Vasani
Java,c++,data structure, syllabus of all things mentioned,assiment all the stuff you need to get a good marks in your college exam
If you are doing BCA then you need this for your good grades all the things you need like syllabus notes last year paper of my college ( St. Xavier college).all notes are hand written and in good hands writing it also includes my assignment which you need the most from all of it. After these you won't need any further notes or any other content.in this you will get syllabus like exactly what to study and last year's paper of all subjects so you will get an idea like what type of questions will came in exam.this recourse will help you the whole 1 St year.please rate if you like it. I have given sample of my handwriting
Shivam Barnwal
Java developer
For more resources please see other content
java server pages
java server pages
Aaishika Rana
Java Server Pages: Advanced Java
JSP explained by Darshan Institute.
All about JavaScript from basic to advanced.
This file contains about JavaScript definition, Introduction, History, How to run JavaScript?, Advantages, etc.
Avishkant Patidar
Normalization,1NF,2NF,3NF, BCNF, with some of the brief examples which are in detail and helpful to know in detail about the concept(Bachelor of engineering)
Normalization,1NF,2NF,3NF, BCNF, with some of the brief examples which are in detail and helpful to know in detail about the concept.
naveen reddy
Working With Strings
The following lists the most common string operations. Command Description"Testing".equals(text1); Return true if text1 is equal to "Testing". The check is case-sensitive."Testing".equalsIgnoreCase(text1); Return true if text1 is equal to "Testing". The check is not case-sensitive. For example, it would also be true for"testing".StringBuilder str1 = new StringBuilder(); Define a new StringBuilder which allows to efficiently add "Strings".str.charat(1); Return the character at position 1. (Note: strings are arrays of chars starting with 0)str.substring(1); Removes the first characters.str.substring(1, 5); Gets the substring from the second to the fifth character.str.indexOf("Test") Look for the String "Test" in String str. Returns the index of the first occurrence of the specified string.str.lastIndexOf("ing") Returns the index of the last occurrence of the specifiedString "ing" in the String str.str.endsWith("ing") Returns true if str ends with String "ing"str.startsWith("Test") Returns true if String str starts with String"Test".str.trim() Removes leading and trailing spaces.str.replace(str1, str2) Replaces all occurrences of str1 by str2str2.concat(str1); Concatenates str1 at the end of str2.str.toLowerCase() / str.toUpperCase() Converts the string to lower- or uppercasestr1 + str2 Concatenate str1 and str2
Jay Kakadiya
Lambdas in Java
What is Lambdas?The Java programming language supports lambdas as of Java 8. A lambda expression is a block of code with parameters. Lambdas allows to specify a block of code which should be executed later. If a method expects afunctional interface as parameter it is possible to pass in the lambda expression instead.The type of a lambda expression in Java is a functional interface.Purpose of lambdas expressions.Using lambdas allows to use a condensed syntax compared to other Java programming constructs. For example theCollection interfaces has forEach method which accepts a lambda expression.List<String> list = Arrays.asList("vogella.com","google.com","heise.de" ) list.forEach(s-> System.out.println(s)); Using method references.You can use method references in a lambda expression. Method reference define the method to be called viaCalledFrom::method. CalledFrom can be * instance::instanceMethod * SomeClass::staticMethod * SomeClass::instanceMethodList<String> list = new ArrayList<>(); list.add("vogella.com"); list.add("google.com"); list.add("heise.de"); list.forEach(System.out::println); Difference between a lambda expression and a closure.The Java programming language supports lambdas but not closures. A lambda is an anonymous function, e.g., it can be defined as parameter. Closures are code fragments or code blocks which can be used without being a method or a class. This means that a closure can access variables not defined in its parameter list and that it can also be assigned to a variable.
Streams
What is streams?A stream from the java.util.stream package is a sequence of elements from a source that supports aggregate operations.IntstreamsAllow to create a stream of sequence of primitive int-valued elements supporting sequential and parallel aggregate operations.package com.vogella.java.streams; import java.util.ArrayList; import java.util.List; import java.util.stream.IntStream; public class IntStreamExample { public static void main(String[] args) { // printout the numbers from 1 to 100 IntStream.range(1, 101).forEach(s -> System.out.println(s)); // create a list of integers for 1 to 100 List<Integer> list = new ArrayList<>(); IntStream.range(1, 101).forEach(it -> list.add(it)); System.out.println("Size " + list.size()); } }
Reduction operations
Reduction operations with streams and lambdas.Allow to create a stream of sequence of primitive int-valued elements supporting sequential and parallel aggregate operations.Try your self:1St package com.vogella.java.streams;public class Task { private String summary; private int duration; public Task(String summary, int duration) { this.summary = summary; this.duration = duration; } public String getSummary() { return summary; } public void setSummary(String summary) { this.summary = summary; } public int getDuration() { return duration; } public void setDuration(int duration) { this.duration = duration; }}2nd:package com.vogella.java.streams;import java.util.ArrayList;import java.util.List;import java.util.Random;import java.util.stream.Collectors;import java.util.stream.IntStream;public class StreamTester { public static void main(String[] args) { Random random = new Random(); // Generate a list of random task List<Task> values = new ArrayList<>(); IntStream.range(1, 20).forEach(i -> values.add(new Task("Task" + random.nextInt(10), random.nextInt(10)))); // get a list of the distinct task summary field List<String> resultList = values.stream().filter( t -> t.getDuration() > 5).map( t -> t.getSummary()).distinct().collect(Collectors.toList()); System.out.println(resultList); // get a concatenated string of Task with a duration longer than 5 hours String collect = values.stream().filter( t -> t.getDuration() > 5).map( t -> t.getSummary()).distinct().collect(Collectors.joining("-")); System.out.println(collect); }}