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Determine output:
public class Test{ static int i = 5; public static void main(String... args){ System.out.println(i++); System.out.println(i); System.out.println(++i); System.out.println(++i+i++); }}
What is the output after compile and run the following code ? int Output = 10;
boolean b = false;
if((b == true) && ((Output += 10) == 20))
{
System.out.println("We are equal " + Output);
}
else
{
System.out.println("Not equal! " + Output);
}
What is the output of following program? abstract class Sum { public abstract int sumOfTwo(int n1, int n2); public abstract int sumOfThree(int n1, int n2, int n3); public void disp( ){ System.out.println("Method of class Sum"); } } class DemoAbstract1 extends Sum { public int sumOfTwo(int num1, int num2) { return num1+num2; } public int sumOfThree(int num1, int num2, int num3) { return num1+num2+num3; } public static void main(String args[ ]){ Sum obj = new DemoAbstract1( ); System.out.println(obj.sumOfTwo(3, 7)); System.out.println(obj.sumOfThree(4, 3, 19)); obj.disp( ); } }
What is the output for the below code ? public class A{ static{ System.out.println("static"); } { System.out.println("block"); } public A(){ System.out.println("A"); } public static void main(String[] args){ A a = new A(); } }
Determine output:
public class Test{ public static void main(String... args){ int a=5 , b=6, c=7; System.out.println("Value is "+ b + c); System.out.println(a + b + c); System.out.println("String " + (b+c)); }}
What will be the value of ‘i’ after the execution of the given C code fragment? static char str1[] = ”dills”; static char str2[20]; static char str3[] = ”daffo”; int i; I = strcmp(strcat(str3,strcpy(str2,str1)),”daffodills”);
What is the result of the following code snippet?

try {
String str = null;
System.out.println(str.length());
} catch (NullPointerException e) {
System.out.println("NullPointerException!");
} catch (Exception e) {
System.out.println("Exception!");
}
What is the result of compiling and running this program? class Mammal{ void eat(Mammal m){ System.out.println("Mammal eats food"); } } class Cattle extends Mammal{ void eat(Cattle c){ System.out.println("Cattle eats hay"); } } class Horse extends Cattle{ void eat(Horse h){ System.out.println("Horse eats hay"); } } public class Test{ public static void main(String[] args){ Mammal h = new Horse(); Cattle c = new Horse(); c.eat(h); } }
What will be the output of the following Java program? class test {public static void main (String args [ ]) { System.out.println(20 + 30 + "Java");  System.out.println("Java" + 20 + 30); } }
Determine output of the following code. interface A { } class C { } class D extends C { } class B extends D implements A { } public class Test extends Thread{ public static void main(String[] args){ B b = new B(); if (b instanceof A) System.out.println("b is an instance of A"); if (b instanceof C) System.out.println("b is an instance of C"); } }