Solution for "optional parameters in java functions"

void foo(String a, Object... b) { Integer b1 = 0; String b2 = ""; if (b.length > 0) { if (!(b[0] instanceof Integer)) { throw new IllegalArgumentException("..."); } b1 = (Integer)b[0]; } if (b.length > 1) { if (!(b[1] instanceof String)) { throw new IllegalArgumentException("..."); } b2 = (String)b[1]; //... } //... } foo("a"); foo("a", 1); foo("a", 1, "b2");

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