What is api in java?

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What is string array?

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What will be the output of the program? public class Test { public static void main(String args[]) { ArrayList<String> list = new ArrayList<String>(); list.add("2"); list.add("3"); list.add("4"); list.add("5"); System.out.println("size :"+list.size()); for(int i=0;i<list.size();i++) { list.remove(i); } System.out.println("size after:"+list.size()); } }

5 Answers   Rolta,

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Why packages are used?

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How to do encapsulation in java?

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Given: 11. public static void main(String[] args) { 12. Integer i = uew Integer(1) + new Integer(2); 13. switch(i) { 14. case 3: System.out.println(”three”); break; 15. default: System.out.println(”other”); break; 16. } 17. } ‘What is the result? 1 three 2 other 3 An exception is thrown at runtime. 4 Compilation fails because of an error on line 12.

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what is java

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Why does java have two ways to create child threads? Which way is better?

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What are the uses of synchronized keyword?

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What is hashing in java?

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What is the intersection and union methods?

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Is string is a data type in java?

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