String,String buffer,String builder difference. Can u write your own immutable class n how?
hashmap implementation and hashcode(),equals() method
he asked me to write 2 logical testing programs with reduced complexity( 0,1,1,2,4,5,3,3,1,0,1 traverse once only n get the duplicate number's along with the count).
printing pascal triangle
duplicate letter from a string with less complexity
reversing words of string individually(this is a tree---o/p: siht si a eert)

Question

String,String buffer,String builder difference. Can u write your own immutable class n how?
hashmap implementation and hashcode(),equals() method
he asked me to write 2 logical testing programs with reduced complexity( 0,1,1,2,4,5,3,3,1,0,1 traverse once only n get the duplicate number's along with the count).
printing pascal triangle
duplicate letter from a string with less complexity
reversing words of string individually(this is a tree---o/p: siht si a eert)

Pascal Triangle with ArrayList in java · Accepted Answer

/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		int i = 0, j = 0, k = 0, depth = 4;
		ArrayList al = new ArrayList();
		ArrayList aln = new ArrayList();
		al.add(1);
		aln = (ArrayList) al.clone();
		for(i=0; i < depth; i++){
			for(j=0; j

manikandan · Answer

public class StringWordsReverse {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        String TestString = "Lets play Cricket";
        String s[]=TestString.split(" ");
        StringBuffer s1;
        for(int i=0;i

sasa · Answer

public class StringWordsINdividuallyReverse {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        String TestString = "Lets play Cricket";
        String s[]=TestString.split(" ");
        StringBuffer s1;
        for(int i=0;i

Satyabrat Das · Answer

import java.util.StringTokenizer;

/**
 * reversing words of string individually
 *
 */
public class StringWordsINdividuallyReverse {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		String TestString = "Lets play Cricket";
		StringTokenizer strToken = new StringTokenizer(TestString," ");
        for(int i=1;strToken.hasMoreTokens();i++){
        	System.out.println(i +"is :" + new StringBuffer(strToken.nextToken()).reverse()+"
");
        	//System.out.println(strToken.nextToken()+"
");
        }
	}

}

Oracle

Question d’entretien chez Oracle

Réponses aux questions d'entretien

Entreprises suivies

Recherche d’emplois