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Java - Test Questions on 'Stack' - 13 questions found


Function variables are kept in ..Core Java
Stack
Heap
Both Stack and Heap
None of them

  memory management  stack  heap

Which of the following statement is not true ?Core Java
x==y means they are pointing to the same object
x==y means that they hold same information
x.equals(y) means they are pointing to the same object
x.equals(y) means that they hold same information

  

When String literals are compared using ==, they always returns true if the string values are same because .. Core Java
of overridden compareTo method
of overridden compare method
of String Pool
== means that the object contents are equal

  

What will be the output of following ?

String str1 = new String("String1");
String str2 = new String("String1");
System.out.print(str1 == str2);
System.out.print(str1.equals(str2));
str1 = str2;
System.out.print(str1 == str2);
Core Java
falsetruetrue
truetruetrue
truetruefalse
falsetruefalse

  equals  object equality

What will be the output of following code ?

String str1 = "String1";
String str2 = "String1";
System.out.print(str1 == str2);
System.out.print(str1.equals(str2));
str1 = str2;
System.out.print(str1 == str2);
Core Java
falsetruetrue
falsefalsetrue
truetruetrue
falsefalsefalse

  equals  object equality  string pool

What will be the output of following code ?

String str1 = "String1";
String str2 = "String2";
str1.concat("String3");
System.out.print(str1);
System.out.print(str2);
Core Java
String1String2
String1String3String3
String1String3String1String3
String1String1

  

What will be the output of following code ?

String str1 = "String1";
String str2 = "String2";
str1=str1.concat("String3");
System.out.print(str1);
System.out.print(str2);
Core Java
String1String2
String1String3String2
String1String2String3
String1Stringg3String1

  

Which memory segment holds String Pool ?Core Java
Stack
Heap
Code Segment
Class Segment

  memory management  string pool

In this code

public class BuggyBread1{
   private static String staticVariable = "static Variable";
   
   private String instanceVariable = "instance Variable";
   
   public static void main (String args[]) {
String localVariable = "local Variable";
}
}

Where will the value 'static Variable' be stored ?
Core Java
Stack Memory Segment
Heap Memory Segment
Runtime Constant Pool within Heap Segment
Code Segment

  memory manegement

In this code

public class BuggyBread1{
   private static String staticVariable = "static Variable";
   
   private String instanceVariable = "instance Variable";
   
   public static void main (String args[]) {
String localVariable = "local Variable";
}
}

Where will the value 'static Variable' be stored ?
Core Java
Stack Memory Segment
Heap Memory Segment
Runtime Constant Pool within Heap Segment
Code Segment

  memory management

In this code

public class BuggyBread1{
   private static String staticVariable = "static Variable";
   
   private String instanceVariable = "instance Variable";
   
   public static void main (String args[]) {
String localVariable = new String("local Variable");
}
}

Where will the value 'local Variable' be stored ?
Core Java
Stack Memory Segment
Heap Memory Segment
Runtime Constant Pool within Heap Segment
Code Segment

  memory management

In this code

public class BuggyBread1{
   private static String staticVariable = new String("static Variable");
   
   private String instanceVariable = "instance Variable";
   
   public static void main (String args[]) {
String localVariable = "local Variable";
}
}

Where will the value 'static Variable' be stored ?
Core Java
Stack Memory Segment
Heap Memory Segment
Runtime Constant Pool within Heap Segment
Code Segment

  memory management

Which of following memory segment is cleaned by Garbage Collection Mechanism ?Core Java
Stack
Heap
Code
Cache

  memory management  garbage collection







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