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Statements are similar to sentences in the English language. A sentence forms a complete idea which can include one or more clauses. Likewise, a statement in Java forms a complete command to be executed and can include one or more expressions.

There are three main groups that encompass the different kinds of statements in Java:

  • Expression statements: these change values of variables, call methods and create objects.
  • Declaration statements: these declare variables.
  • Control flow statements: these determine the order that statements are executed.

 //declaration statement
 int number;
 //expression statement
 number = 4;
 //control flow statement
 if (number < 10 )
   //expression statement
   System.out.println(number + " is less than ten");


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