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Ramu Prasad has Published 73 Articles
![Ramu Prasad](https://www.tutorialspoint.com/assets/profiles/13539/profile/60_87996-1512650215.jpg)
Ramu Prasad
1K+ Views
The basic rule while specifying a table within a structure is that you have to give a non-unique constraint to that field.TYPES: myType TYPE TABLE OF string WITH NON-UNIQUE DEFAULT KEYThen use this in the structure definition:TYPES: BEGIN OF ty_itab, ….. myTable type myType, …….. TYPES: END OF ty_itab.Read More
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Ramu Prasad
606 Views
Here is a code snippet to do the same.data: f_line type xstring. // to get line by line content data: f_file type table of xstring. // to get the final content data: f_filename type string value 'samplefile.txt'. // store the ... Read More
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Ramu Prasad
237 Views
The members and base classes of a struct are public by default, while in class, they default to private. Struct and class are otherwise functionally equivalent.They are however used in different places due to semantics. a struct is more like a data structure that is used to represent data. class, ... Read More
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Ramu Prasad
82 Views
We can compare Strings in Java using the compareTo() method and the == operator.comapareTo() method: The compareTo() method compares two strings lexicographically. The comparison is based on the Unicode value of each character in the strings. The character sequence represented by this String object is compared lexicographically to the character sequence ... Read More
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Ramu Prasad
766 Views
Since a vector stores elements in the form of objects, you can store objects of various types (heterogeneous) in it.Example:import java.util.*; class Demo{} public class VectorSample { public static void main(String args[]) { Demo obj = new Demo(); Vector v = new ... Read More
![Ramu Prasad](https://www.tutorialspoint.com/assets/profiles/13539/profile/60_87996-1512650215.jpg)
Ramu Prasad
78 Views
The getLast() method of the class java.util.LinkedList returns the last element in this list.Example:import java.util.*; public class LinkedListDemo { public static void main(String[] args) { LinkedList list = new LinkedList(); list.add("Hello"); list.add(2); list.add("Chocolate"); list.add("10"); ... Read More
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Ramu Prasad
217 Views
The replace method of the String class accepts two characters and it replaces all the occurrences of oldChar in this string with newChar.Example Live Demoimport java.io.*; public class Test { public static void main(String args[]) { String Str = new String("Welcome to Tutorialspoint.com"); System.out.print("Return ... Read More
![Ramu Prasad](https://www.tutorialspoint.com/assets/profiles/13539/profile/60_87996-1512650215.jpg)
Ramu Prasad
11K+ Views
Single Level inheritance - A class inherits properties from a single class. For example, Class B inherits Class A.Example Live Democlass Shape { public void display() { System.out.println("Inside display"); } } class Rectangle extends Shape { public void area() { System.out.println("Inside area"); ... Read More
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Ramu Prasad
499 Views
You can transport your ALV layouts to other system if they are not user specific. This can be performed in Layout Administration by raising a customizing request.Navigate to this path for Layout Administration:Main Menu -> Settings -> Layout -> Administration