81. Which of these classes can schedule task for execution in future?
82. What will be the output of the following Java program?
class X
{
int a;
double b;
}
class Y extends X
{
int c;
}
class Output
{
public static void main(String args[])
{
X a = new X();
Y b = new Y();
Class obj;
obj = b.getClass();
System.out.print(obj.getSuperclass());
}
}
class X
{
int a;
double b;
}
class Y extends X
{
int c;
}
class Output
{
public static void main(String args[])
{
X a = new X();
Y b = new Y();
Class obj;
obj = b.getClass();
System.out.print(obj.getSuperclass());
}
}83. What will be the output of the following Java program?
class Output
{
public static void main(String args[])
{
int x = 3.14;
int y = (int) Math.abs(x);
System.out.print(y);
}
}
class Output
{
public static void main(String args[])
{
int x = 3.14;
int y = (int) Math.abs(x);
System.out.print(y);
}
}84. Which of these methods is not defined in both Byte and Short wrappers?
85. Which of these methods is used to know whether a string contains "true"?
86. Which of the interface contains all the methods used for handling thread related operations in Java?
87. Which of these method is a rounding function of Math class?
88. Which of these is method for testing whether the specified element is a file or a directory?
89. Which of these methods calls update() method?
90. What will be the output of the following Java program?
class newthread implements Runnable
{
Thread t;
newthread()
{
t = new Thread(this,"My Thread");
t.start();
}
public void run()
{
System.out.println(t.getName());
}
}
class multithreaded_programing
{
public static void main(String args[])
{
new newthread();
}
}
class newthread implements Runnable
{
Thread t;
newthread()
{
t = new Thread(this,"My Thread");
t.start();
}
public void run()
{
System.out.println(t.getName());
}
}
class multithreaded_programing
{
public static void main(String args[])
{
new newthread();
}
}Read More Section(Interfaces and Abstract Classes)
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