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Top 10 java interview questions.
1.
T.Kajavathanan lk.linkedin.com/in/tkajavathanan/
2.
• Answer many forms Overloading Overriding
3.
• Answer public methods Getters Setters public
int getAge() { return age; } public void setAge( int newAge) { age = newAge } assign values
4.
• Answer
5.
• Answer Concatenation of
String Concatenation of StringBuffer String greet=“Hello “; Greet +=“friend”; StringBuffer greet=new StringBuffer(“Hello”); greet.append(“ friend”);
6.
• Answer
7.
• 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{ … }
8.
• 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 myObj=a.next(); System.out.println(myObj+ “ ”); }
9.
static Public static void
main() • Answer
10.
• Answer
11.
• Answer
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