How to use foreach statements to traverse all elements in Java

This article mainly introduces how to use foreach statement to traverse all elements in Java, which has a certain reference value, and interested friends can refer to it. I hope you can learn a lot after reading this article.

Foreach statement

The foreach statement is one of the new features of the Java5 version, which provides programmers with great convenience when it is designed to traverse arrays and collections, but the foreach statement cannot completely replace the for loop statement.

System.out.println ("(foreach) student information:"); for (Object obj:students) {Student s = (Student) obj; System.out.println ("No.:" + s.ID + "\ t\ t\ t name:" + s.name + "\ t\ t\ t Age:" + s.age + "\ t\ t gender:" + s.gender);}}

From a code point of view, the foreach statement is obviously much simpler than the for loop statement, without the need to define initial values, determine the scope of judgment, and do not need to increase or decrease. But this does not mean that foreach statements can replace for loop statements. Obviously, what foreach can do, for loops can do; what for loops can do, foreach can not necessarily do.

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