overload

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java

Select all pairs of methods that are incompatible with each other in the same class.

java

What will be the result of compiling and running the following code? public class Main { public static void var(int... x) //1 { System.out.println("int... x"); } public static void var(Object... x) //2 { System.out.println("Object... x"); } public static void var(Integer... x) //3 { System.out.println("Integer..."); } public static void main(String... args) { int i = 0; Integer i2 = 127; var(i, i2); } }

java

What will be the result of compilation and execution of the following code? import java.util.*; public class Test { void a1(Object... i){ System.out.println("[Object... i]"); } void a1(Integer... i){ System.out.println("[Integer... i]");; } public static void main(String... args){ a1(new Integer[19]); } }

java

What is the result of compiling and running the following code: public class Main { public static void main(String[] args) { Parent p = new Parent(); Child c = new Child(); Parent p2 = new Child(); useIt(p); useIt(c); useIt(p2); } final static void useIt (Parent p){ System.out.println("Parent"); } final static void useIt (Child c){ System.out.println("Child"); } } class Parent { } class Child extends Parent { }

java

What will be the output of the following program: public class VarTest { public static void main(String[] X) { Integer x = 1; Integer y = 2; print(1); print(1,2); print(x); print(x,y); } static void print(int i) { System.out.print(1); } static void print(Integer... i) { System.out.print(2); } static void print(Integer i) { System.out.print(3); } static void print(int... i) { System.out.print(4); } }