Question:Which statement is true about the given code?
public class Test78 {
        public static void main(String[] args) throws Exception {
                new JBean().setHeight(1).setWidth(2).setDepth(3).setDensity(9);
        }
}
class JBean {
        private int height, width, depth, density;
        public JBean setHeight  (int h) { this.height  = h; return this; }
        public JBean setWidth   (int w) { this.width   = w; return this; }
        public JBean setDepth   (int d) { this.depth   = d; return this; }
        public JBean setDensity (int d) { this.density = d; return this; }
}
 

A The code does not compile, because two setters have a formal parameter with the same name. 
B The setters of the JBean class are JavaBean-compliant. 
C The code compiles, but throws a NullPointerException at run-time. 
D The code compiles and runs. 

+ Answer
D 

+ Report

Mohammad Towhidul Islam

Editor, VCampus

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