Top 10 java interview questions.

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Information about Top 10 java interview questions.

Published on February 25, 2014

Author: tmoorthyk



These are the top 10 java interview questions for interns.


• Answer many forms Overloading Overriding

• Answer public methods Getters Setters public int getAge() { return age; } public void setAge( int newAge) { age = newAge } assign values

• Answer

• Answer Concatenation of String Concatenation of StringBuffer String greet=“Hello “; Greet +=“friend”; StringBuffer greet=new StringBuffer(“Hello”); greet.append(“ friend”);

• Answer

• Answer We can use Final key word for this purpose. Final keyword means we can’t implement this class anymore. We can use Final key word for class, methods and variables. Final class myClass{ … }

• Answer ArrayList List=new ArrayList(); List.add(“Sunday”); List.add(“Monday”); List.add(“Tuesday”); List.add(“Wednesday”); List.add(“Thursday”); Iterator a=List.iterator(); While(a.hasNext()){ Object; System.out.println(myObj+ “ ”); }

static Public static void main() • Answer

• Answer

• Answer

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