how to make a method argument optional in java code example
Example 1: java how to make a parameter optional
void foo(String a, Integer b) {
}
void foo(String a) {
foo(a, 0);
}
foo("a", 2);
foo("a");
Example 2: java how to make a parameter optional
void foo(String a, Integer... b) {
Integer b1 = b.length > 0 ? b[0] : 0;
Integer b2 = b.length > 1 ? b[1] : 0;
}
foo("a");
foo("a", 1, 2);
Example 3: java how to make a parameter optional
void foo(String a, Integer b, Integer c) {
b = b != null ? b : 0;
c = c != null ? c : 0;
}
foo("a", null, 2);