×
Detail Form
We will send your result on your email id and phone no. please fill detail
1.
What is the output of the following Java code:
class operator {
public static void main(String args[]) {
boolean a = true;
boolean b = !true;
boolean c = a | b;
boolean d = a & b;
boolean e = d ? b : c;
System.out.println(e);
}
}
public static void main(String args[]) {
boolean a = true;
boolean b = !true;
boolean c = a | b;
boolean d = a & b;
boolean e = d ? b : c;
System.out.println(e);
}
}
2.
In Java, which of the following statements is correct?
3.
What is the output of the following Java code:
import java.util.*;
class Test {
public static void call(Exception e) {
System.out.println("Exception");
}
public static void call(NullPointerException e) {
System.out.println("NullPointer");
}
public static void call(Object e) {
System.out.println("Object");
}
public static void main(String args[]) {
call(null);
}
}
class Test {
public static void call(Exception e) {
System.out.println("Exception");
}
public static void call(NullPointerException e) {
System.out.println("NullPointer");
}
public static void call(Object e) {
System.out.println("Object");
}
public static void main(String args[]) {
call(null);
}
}
4.
What is the output of the following Java code:
import java.util.*;
public class Test {
public static void main(String[] args) {
Integer a = new Integer(4);
Integer b = new Integer(8);
Integer c = new Integer(4);
TreeSet ts = new TreeSet();
ts.add(a);
ts.add(b);
ts.add(c);
System.out.println(ts);
}
}
import java.util.*;
public class Test {
public static void main(String[] args) {
Integer a = new Integer(4);
Integer b = new Integer(8);
Integer c = new Integer(4);
TreeSet ts = new TreeSet();
ts.add(a);
ts.add(b);
ts.add(c);
System.out.println(ts);
}
}
5.
What is the output of the following Java code:
import java.util.*;
interface A {
public void method1();
}
class One implements A {
public void method1() {
System.out.println("Code");
}
}
class Two extends One {}
public class Test extends Two {
public static void main(String[] args) {
A a;
Two t = new Two();
a = t;
a.method1();
}
}
import java.util.*;
interface A {
public void method1();
}
class One implements A {
public void method1() {
System.out.println("Code");
}
}
class Two extends One {}
public class Test extends Two {
public static void main(String[] args) {
A a;
Two t = new Two();
a = t;
a.method1();
}
}
6.
What is the output of the following Java code:
import java.util.*;
public class X {
public static void main(String[] args) {
try {
badMethod();
System.out.print("A");
} catch (Exception ex) {
System.out.print("B");
} finally {
System.out.print("C");
}
System.out.print("D");
}
public static void badMethod() {}
}
import java.util.*;
public class X {
public static void main(String[] args) {
try {
badMethod();
System.out.print("A");
} catch (Exception ex) {
System.out.print("B");
} finally {
System.out.print("C");
}
System.out.print("D");
}
public static void badMethod() {}
}
7.
In Java, which of the following methods registers a thread in a thread scheduler:
- construct();
- run();
- start();
- register();
8.
In Java, which of the following is used to stop the execution of a thread?
9.
In Java, which of the following are valid constructors of the Thread class:
- Thread(Runnable r, String name)
- Thread()
- Thread(int priority)
- Thread(Runnable r, ThreadGroup g)
- Thread(Runnable r, int priority)
10.
In Java, which of the following statements is true?