What is the use of singleton class?
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What is the purpose of using break in each case of switch statement?
What is the difference between abstract class and interface1? What is an interface?
What is the exception hierarchy in java?
What is r * in math?
How do you replace all in word?
How can you debug the Java code?
What is the differnence between String Buffer and String builder despite having knowledge that String builder is faster than String Buffer and last one is threadsafe.please tell another important difference.
whats string ?
List primitive java types?
What are the types of methods in java?
How do you define a method?
Name four container classes.