{"id":14693,"date":"2018-04-28T05:27:38","date_gmt":"2018-04-28T05:27:38","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=14693"},"modified":"2026-05-09T16:24:02","modified_gmt":"2026-05-09T10:54:02","slug":"command-line-arguments-in-java-clone-method","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/command-line-arguments-in-java-clone-method\/","title":{"rendered":"Command Line Arguments In Java | Clone() Method In Java"},"content":{"rendered":"

In our last chapter, we talked about\u00a0how to read Java Console Input<\/strong>. Now, we are ready to discuss Command Line Arguments in Java Programming<\/em>. In addition, we will learn the clone() method in Java <\/strong>and deep copy and shallow copy. At last, we study the advantages of clone methods.<\/p>\n

So, let’s start with <\/span>Command Line Arguments in Java.<\/p>\n

Command Line Arguments in Java<\/h3>\n

Command line argument is mainly used to control your program from the outside. When a command is sent to the JVM<\/strong>, it wraps them and sends them to args[]. The args[] array here actually wraps the arguments by checking the length of the argument using args.length.<\/span><\/p>\n

Clone() Method in Java<\/h3>\n

No operator is meant to create a copy of the object in Java, which is unlike C++. In Java, we use the assignment operator to create a copy of the variable and not the object.<\/span><\/p>\n

Clone() is a built-in method of Java that is mainly used to create a copy of an object in Java. By using the clone method, all the attributes of the referenced object are inherited by the cloned object. There are certain ways of cloning an object using the clone method. We will discuss it further.<\/p>\n

Example\u00a0 of clone method in Java \u2013<\/strong><\/span><\/p>\n

package com.dataflair.commandlineargument;\r\nclass Test\r\n{\r\n  int variable1, variable2;\r\n  Test()\r\n  {\r\n    variable1 = 10;\r\n    variable2 = 20;\r\n  }\r\n}\r\npublic class CloneMethodInJava \r\n{\r\n  public static void main(String[] args)\r\n  {\r\n    Test ob1 = new Test();\r\n    System.out.println(ob1.variable1 + \" \" + ob1.variable2);\r\n    Test ob2 = ob1;\r\n    ob2.variable1 = 100;\r\n    System.out.println(ob1.variable1+\" \"+ob1.variable2);\r\n    System.out.println(ob2.variable1+\" \"+ob2.variable2);\r\n  }\r\n}\r\n<\/pre>\n
Output:\"\"<\/a><\/strong><\/p>\n
Creating a Copy using the Clone() Method<\/h3>\n
The class must have a public clone method in it or in one of its parent classes. <\/span><\/p>\n