Nested Loops
It is possible to place a loop inside another loop. This is called a nested loop.The "inner loop" will be executed one time for each iteration of the "outer loop".
// Outer loop
for (int i = 1; i <= 2; i++) {
System.out.println("Outer: " + i);
// Inner loop
for (int j = 1; j <= 3; j++) {
System.out.println(" Inner: " + j);
}
}