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Java Questions Set 264:

Quiz Mode

printStackTrace methods are used to print a stack trace

True

False

Solution:

TotalMemory() returns the total number of bytes of memory available to the program

True

False

Solution:

Can we have a private constructor in Java?

True

false

depends on the condition.

all of the above.

Solution:

How can an object be unreferenced?

By nulling the reference

By assigning a reference to another

By anonymous object etc

All of the above

Solution:

What is the relationship called where a child object gets killed if the parent object is killed?

Aggregation

Composition

Encapsulation

Association

Solution:

if the constructor of class A is made private then Objects of class A can be instantiated only within the class where it is declared

True

False

Solution:

`public class output{`

`public static void main(String args[]){`

`int a=10;`

`int b=20;`

`int sum=0;`

`sum= ++a + ++b;`

`System.out.println(sum);`

`}`

`}`

runtime error

Solution:

public class abekus
{
public static void main(String[] args) {
float a = 90.0f;
String temp = Float.toString(a);
System.out.println(temp);
}
}

"90.0f"

90.0

all of above

Solution:

What will be the correct output?
public class Main {
int x=9;
public void add(int i)
{
  System.out.println("integer value passed.");
}
public void add(float i)
{
  System.out.println("float value passed.");
}
public static void main(String[] args) {
  Main m=new Main();
  m.add(10.4f);
}
}

integer value passed.

float value passed.

compilation error.

No output

Solution:

Which of the following statements about Java is false?

In Java, everything is an object which has some data and behavior. Java can be easily extended as it is based on the Object Model.

Java is guaranteed to be a write-once, run-anywhere language. When a Java program is compiled, it is converted into bytecode.

Java can be run on any hardware architecture.

In Java, we can make functions inline like in C++.

Java Questions Set 264:

printStackTrace methods are used to print a stack trace

Solution:

TotalMemory() returns the total number of bytes of memory available to the program

Solution:

Can we have a private constructor in Java?

Solution:

How can an object be unreferenced?

Solution:

What is the relationship called where a child object gets killed if the parent object is killed?

Solution:

if the constructor of class A is made private then Objects of class A can be instantiated only within the class where it is declared

Solution:

`public class output{`

`public static void main(String args[]){`

`int a=10;`

`int b=20;`

`int sum=0;`

`sum= ++a + ++b;`

`System.out.println(sum);`

`}`

`}`

Solution:

public class abekus
{
public static void main(String[] args) {
float a = 90.0f;
String temp = Float.toString(a);
System.out.println(temp);
}
}

Solution:

What will be the correct output?
public class Main {
int x=9;
public void add(int i)
{
  System.out.println("integer value passed.");
}
public void add(float i)
{
  System.out.println("float value passed.");
}
public static void main(String[] args) {
  Main m=new Main();
  m.add(10.4f);
}
}

Solution:

Which of the following statements about Java is false?

Solution:

Related Question Sets:

Related Topics:

Java Questions Set 264:

printStackTrace methods are used to print a stack trace

Solution:

TotalMemory() returns the total number of bytes of memory available to the program

Solution:

Can we have a private constructor in Java?

Solution:

How can an object be unreferenced?

Solution:

What is the relationship called where a child object gets killed if the parent object is killed?

Solution:

if the constructor of class A is made private then Objects of class A can be instantiated only within the class where it is declared

Solution:

public class output{ public static void main(String args[]){ int a=10; int b=20; int sum=0; sum= ++a + ++b; System.out.println(sum); } }

Solution:

public class abekus{ public static void main(String[] args) {float a = 90.0f;String temp = Float.toString(a);System.out.println(temp);}}

Solution:

What will be the correct output?public class Main { int x=9; public void add(int i) { System.out.println("integer value passed."); } public void add(float i) { System.out.println("float value passed."); } public static void main(String[] args) { Main m=new Main(); m.add(10.4f); }}

Solution:

Which of the following statements about Java is false?

Solution:

Related Question Sets:

Related Topics:

`public class output{`

`public static void main(String args[]){`

`int a=10;`

`int b=20;`

`int sum=0;`

`sum= ++a + ++b;`

`System.out.println(sum);`

`}`

`}`

public class abekus
{
public static void main(String[] args) {
float a = 90.0f;
String temp = Float.toString(a);
System.out.println(temp);
}
}

What will be the correct output?
public class Main {
int x=9;
public void add(int i)
{
System.out.println("integer value passed.");
}
public void add(float i)
{
System.out.println("float value passed.");
}
public static void main(String[] args) {
Main m=new Main();
m.add(10.4f);
}
}