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Does Java support default parameter values for a method?
Java does not support the concept of default parameter however, you can achieve this using
Method overloading
Using method overloading if you define method with no arguments along with parametrized methods. Then you can call a method with zero arguments.
Variable arguments
In Java methods parameters accept arguments with three dots. These are known as variable arguments. Once you use variable arguments as a parameter method, while calling you can pass as many number of arguments to this method (variable number of arguments) or, you can simply call this method without passing any arguments.
Example
public class Sample {
void demoMethod(String... args) {
for (String arg : args) {
System.out.println(arg);
}
}
public static void main(String args[] ) {
new Sample().demoMethod("ram", "rahim", "robert");
new Sample().demoMethod("krishna", "kasyap");
new Sample().demoMethod();
}
}Output
ram rahim robert krishna kasyap
Updated on: 16-Jun-2020
2K+ Views
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