initialization_expression: define two variables in for loop : For Loop « Statement Control « Java Tutorial

public class MainClass {

  public static void main(String[] arg) {
    int limit = 10;
    int sum = 0;
    for (int i = 1, j = 0; i <= limit; i++, j++) {
      sum += i * j;

4.6.For Loop
4.6.1.The for Statement
4.6.2.For statement in detail
4.6.3.A loop allows you to execute a statement or block of statements repeatedly
4.6.4.The numerical for loop
4.6.5.Infinite For loop Example
4.6.6.initialization_expression: define two variables in for loop
4.6.7.Declare multiple variables in for loop
4.6.8.Multiple expressions in for loops
4.6.9.To omit any or all of the elements in 'for' loop: but you must include the semicolons
4.6.10.Keeping the middle element only in for loop
4.6.11.Using the Floating-Point Values as the control value in a for loop
4.6.12.Nested for Loop
4.6.13.Java's 'labeled for' loop
4.6.14.Print out a Diamond