Java Examples

Author: lokeshgupta1981

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+package com.howtodoinjava.core.basic;
+
+import java.nio.charset.Charset;
+
+public class CharacterEncodingExample {
+
+  public static void main(String[] args) {
+    String fileCoding = System.getProperty("file.encoding");
+    System.out.println(STR."Default Character Encoding: \{fileCoding}");
+
+    String filePathEncoding = System.getProperty("sun.jnu.encoding");
+    System.out.println(STR."Default File Path Encoding: \{filePathEncoding}");
+
+    String defaultCharset = Charset.defaultCharset().displayName();
+    System.out.println(STR."Default Charset Name: \{defaultCharset}");
+
+    /*System.setProperty("file.encoding", "UTF-16");
+    System.setProperty("sun.jnu.encoding", "UTF-16");*/
+
+    defaultCharset = System.out.charset().displayName();
+    System.out.println(STR."Default Character Encoding: \{defaultCharset}");
+
+    System.out.println("The façade pattern is a software-design pattern.");
+  }
+}

src/main/java/com/howtodoinjava/core/basic/CharacterEncodingExample.java

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+package com.howtodoinjava.core.basic;
+
+import java.util.Objects;
+import lombok.AllArgsConstructor;
+
+public class ObjectIdentityString {
+
+  public static void main(String[] args) {
+    Record record = new Record(1L, "record name");
+
+    System.out.println(record);
+
+    System.out.println(record != null ? Objects.toIdentityString(record) : "null");
+
+    System.out.println(getIdentityString(record));
+  }
+
+  static String getIdentityString(Object object) {
+    return object.getClass().getName() + "@"
+        + Integer.toHexString(System.identityHashCode(object));
+  }
+}
+
+@AllArgsConstructor
+class Record {
+  long id;
+  String name;
+
+  @Override
+  public String toString() {
+    return STR."Record{id=\{id}, name='\{name}\{'\''}\{'}'}";
+  }
+}