Big Data <javase + Linux Elite Training class >_day_04

1: The most common looping statement for the for loop, base syntax                . Used in cases where the number of cycles is known.          for (initialize an expression; loop condition; action expression) {            EXECUTE statement;            .....        }

 /*   for loop writing format: for (initialization expression; loop condition; action expression) {            Execute the statement;    .....        } Initialization expression: Defines the number of times the variable, function, control loop condition: When the condition is true, the loop body is executed, and when the condition is false, the loop increment is ended: The case of the variable increment  */  public  class   fordemo{ public  static  void   main (string[] args) { for  (int  i = 0;i < 11;        ++i) {System.out.println (i); }    }}

 /*   Take advantage of the for loop to calculate the result of 1+4 1 + 2 + 3 + 4 = 10 1+2 and +3 1+2+3 and +4  */ public  class   fordemo_2{ public< /span> static  void   main (string[] args) { //  Define variables, record the result after summing  int  sum = 0;  for  (int  i = 0; I <= 4; ++i) {sum  = sum + I;    } System.out.println (sum); }}

2: Basic syntax--looping statements do ...  while                 Do the. While loop statement is similar to the while Loop statement, the                syntax structure  Do {            EXECUTE statement;            ...        }  while (cyclic conditions);

Big Data <javase + Linux Elite Training class >_day_04