string length

Java-Get Length

Get Length The String class defines a number of methods that allow us to accomplish a variety of string manipulation tasks. The number of characters in a string provided by the length( ) method of the String class. Since it is an instantiated method, we have to invoke it from an object of the String … Read more…

string declaration and initialization java

Java-String

String A string is a sequence of characters. In Java, string is the most important data type. A string is enclosed in quotation marks, as in the case of the example “KrugerPark”. But the quotation marks are not themselves part of the string. The string are useful in representing various types of non-numeric data, such … Read more…

Java-Returning Arrays From Method

Returning Arrays From Method A method may also return an array. For example, in the following program, the method returnData( ) returns an array. Program Program Source class Data { int[] returnData() { return new int[]{20,40,60,80}; } } public class Javaapp { public static void main(String[] args) { Data da = new Data(); int[] getData = da.returnData(); for(int … Read more…

Java-Array as Parameters of Method

Array as Parameters of Method By passing the array name, we are, in fact passing the reference of the array to the called function. The array in the called function now refers to the same array stored in the memory. Program Program Source class Setdata{ void setData(int[] v) { v[0] = 10; v[2] = 30; v[4] … Read more…

Java-Array of String

Array of String You can place objects of string into arrays. This is done in the same way as for character. The string representation consists of a list of the array’s elements, enclosed in braces (“{}”). Adjacent elements are separated by the string”,”. Program Program Source public class Javaapp { public static void main(String[] args) … Read more…

Java-copyOf

copyOf The copyOf() method returns a copy of an array and has the following forms : The original array is specified by source, and the length of the copy is specified by len. If the copy is longer than source, then the copy is padded with zeros, nulls or false. If the copy is shorter … Read more…