If super class and sub class have same methods including name, return type and parameters, and if you try to call it using the object of the sub class Then the method in the sub class is invoked. Constructor looks like method but it is not. It does not have ... Read More

The java.io.PrintStream.println() method prints an array of characters and then terminate the line. This method behaves as though it invokes print(char[]) and then println(). Using this method you can print the data on the console. import java.io.*; public class PrintStreamDemo { public static void main(String[] args) ... Read More

Compile time errors are syntactical errors in the code which hinders it from being compiled. Example public class Test{ public static void main(String args[]){ System.out.println("Hello") } } Output C:\Sample>Javac Test.java Test.java:3: error: ';' expected ... Read More

It does not seem to be feasible to edit the report once generated. You cannot add a constraint or logic to allow your report to be editable.But there does exist a work around, what you can do is: First export the report and then you can change the mode of ... Read More

Whenever, you want to pass different number of arguments each time you call a method you should use vararg methods. This example creates sumvarargs() method which takes variable no of int numbers as an argument and returns the sum of these arguments as an output. Example Live Demo ... Read More

This Exception happens once you associated convert a string variable in an incorrect format to a whole number (numeric format) that's not compatible with one another. Example public class Test { public static void main(String[] args) { int data = ... Read More

Field symbol resembles pointer in C but there is one main difference: you can use Field Symbol only to access the values present in it but not the memory address. Similar to a pointer in actual, it stores the memory address of the variable that was assigned to it. You ... Read More

The finally block follows a try block or a catch block. A finally block of code always executes, irrespective of occurrence of an Exception.

You just need to make a small change. You need to add an “If condition” for handling the tab as shown below − if CO gc_hex_char I think it should sort out your issue and neither it looks like hardcoding or a wrong implementation.

Passing Parameters by Value means calling a method with a parameter. Through this, the argument value is passed to the parameter. Example public class SwappingExample { public static void swapFunction(int a, int b) { int c = a+b; ... Read More