Java Methods Interview Questions

    Question 1: JAVA - Method Basics

    Which of the following is a valid method declaration in Java?

    Question 2: JAVA - Return Type

    What will be the output?

    int add(int a, int b) {
    return a + b;
}
System.out.println(add(3, 4));

    Question 3: JAVA - Method Overloading

    Which statement about method overloading is true?

    Question 4: JAVA - Method Overloading Example

    What will the following code print?

    class Test {
    void show(int x) { System.out.println("int: " + x); }
    void show(String s) { System.out.println("String: " + s); }
}
Test t = new Test();
t.show("Java");

    Question 5: JAVA - Method Overriding

    Which of the following is true about method overriding?

    Question 6: JAVA - Static Method

    Which statement is correct about static methods?

    Question 7: JAVA - Recursion Example

    What will this code print?

    int fact(int n) {
    if(n == 1) return 1;
    return n * fact(n - 1);
}
System.out.println(fact(4));

    Question 8: JAVA - Varargs Method

    What will the following code print?

    void display(int... nums) {
    System.out.println(nums.length);
}
display(10, 20, 30);

    Question 9: JAVA - Main Method Signature

    Which is the correct main method declaration in Java?

    Question 10: JAVA - Pass by Value

    What will be the output?

    void change(int x) {
    x = 50;
}
int a = 10;
change(a);
System.out.println(a);