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|Interview Questions and Answers for 'Centre for internet and society (cis)' - 1 question(s) found - Order By Newest|
|Ans. String pool (String intern pool) is a special storage area in Java heap. When a string is created and if the string already exists in the pool, the reference of the existing string will be returned, instead of creating a new object and returning its reference.|
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|Like Discuss Correct / Improve java oops string string class string pool heap memory SAS Institute Ariba GuideWire Harbinger Oracle Virtusa Knoa Polaris GuideWire HCL Technologies Tata Consultancy (TCS) Infosys Technologent MphasiS Harbinger Group Kony Evergent NTT Data VMware Markit Ariba Tech Mahindra Bureau Veritas InfoStretch PTC Software Mindtree Centre for Internet and Society (CIS) Trimax IT Infrastructure & Services intermediate   frequent|
Try 2 Question(s) Test
|What are different ways to create String Object? Explain.|
|How does making string as immutable helps with securing information ? How does String Pool pose a security threat ?|
|Why Char array is preferred over String for storing password?|
|Which memory segment holds String Pool in Java ?|
|How and Why Strings are interned in Java ?|
| What will be the output of following code|
Integer x = 1;
Integer y = 2;
System.out.println(x == y);
What if you change 1 to "1" and Integer to String?
| What will be result of following code and why|
Integer int1 = 1;
Integer int2 = 1;
String str1 = new String("str");
String str2 = new String("str");
String str3 = "str";
String str4 = "str";
System.out.println(int1 == int2);
System.out.println(str1 == str2);
System.out.println(str3 == str4);
|What is the purpose of String Pool ? Don't you think it's a performance overhead to have unnecessary check for string in string pool ?|