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Java 2022-03-27 21:35:04
Sort string array in case insensitive order and case sensitive order java
import java.util.Arrays; public class SortStringArrayDemo { public static void main(String[] args) { String[] fruits = new String[5]; fruits[0] = "Mango"; fruits[1] = "cherries"; fruits[2] = "Apple&q... Add solution -
Java 2022-03-27 20:40:19
TreeSet headSet(E toElement) method in java
import java.util.Iterator; import java.util.TreeSet; public class TreeSetHeadSetEToElementMethodExample { public static void main(String[] args) { TreeSet<Integer> ts = new TreeSet<Integer>(); TreeSet<Integer> hs = new ... Add solution -
Java 2022-03-27 16:45:39
TreeMap clear() method in java
import java.util.TreeMap; public class TreeMapClearMethodExample { public static void main(String[] args) { TreeMap<Integer, String> tm = new TreeMap<Integer, String>(); tm.put(8, "red"); tm.put(12, "blue... Add solution -
Other 2022-03-27 16:25:48
Java Super Power java
import javax.swing.JOptionPane;public class SuperPower{public static void main(String[] args) {String power;power = JOptionPane.showInputDialog("What is your super power?");power = power.toUpperCase();JOptionPane.showMessageDialog(null,pow... Add solution -
Java 2022-03-26 13:40:11
generate all prime number less than n java
/** Author: Jeffrey Huang As far as I know this is almost the fastest method in java for generating prime numbers less than n. A way to make it faster would be to implement Math.sqrt(i) instead of i/2. I don't know if you could implement sieve of eratost... Add solution -
Java 2022-03-25 07:40:02
convert base64 to pdf in java
import java.io.File; import java.io.FileOutputStream; import java.util.Base64; class Base64DecodePdf { public static void main(String[] args) { File file = new File("./test.pdf"); try ( FileOutputStream fos = new FileOutputStream(fil... Add solution -
Java 2022-03-24 14:25:01
how can you record your screen using java
import java.awt.Dimension; import java.awt.Rectangle; import java.awt.Robot; import java.awt.Toolkit; import java.awt.image.BufferedImage; import java.io.File; import javax.imageio.ImageIO; public class ScreenCapture { public static void main(String args... Add solution -
Other 2022-03-24 12:35:22
Using Validation Annotations
import javax.validation.constraints.AssertTrue; import javax.validation.constraints.Max; import javax.validation.constraints.Min; import javax.validation.constraints.NotNull; import javax.validation.constraints.Size; import javax.validation.constraints.Em... Add solution