Getting unwanted NullPointerException in ternary operator - Why?[duplicate]
This question already has an answer here: Short form for Java If statement returns NullPointerException when one of the returned objects is null [duplicate] 3 answers While executing the following code, I am getting a NullPointerException at line: value = condition ? getDouble() : 1.0; In earlier lines when I use null instead of getDouble() everything works and this is strange. public class Test { static Double getDouble() { return null; } public static void main(String[] args) { boolean condition = true; Double value; value = condition ? null : 1.0; //works fine System.out.println(value); //prints null value = condition ? getDouble() : 1.0; //throws NPE System.out.println(value); } } Can someone help me understand this behavior? When you write value = condition ? null : 1.0; the type of condition ? null : 1.0 must be a reference type, so the type is Double, which can hold the value null. When you write value = condi...