Java Program Structure

If

//         Boolean i = true; //         if (i = = True) {//            System.out.println ("executes if"); //         }else{//            System.out.println ("perform else"); //         }

Switch

//int i =;//switch (i) {//Case ://System.out.println ("You're stupid");//Break ;//Case ://System.out.println ("You are more Foolish");//Break ;//Case ://System.out.println ("You're a little silly");//Break ;//Case ://System.out.println ("You are normal");//Break ;//        }

While

//         int i = 1; //         Int j = Ten; // While         (i<j) {//            System.out.println (i+ "*" +j+ "=" +i*j); //             i++; //             j--; //         }

Do While:

// Do         {//            System.out.println (i+ "*" +j+ "=" +i*j); //             i++; //             j--; //         } while (I<J); // For         (i = 1;i<j;i++) {//            System.out.println (i+ "*" +j+ "=" +i*j); //             j--; //         }

Positive triangle, inverted triangle:

int i;         int J;          for (i = 3;i>=-3;i--) {            int a = Math.Abs (i);   Take the absolute value for            (j = a;j>0;j--) {                System.out.print ("*");            }            System.out.println ("");        }

Operation Result:

***

**

*

*

**

***

99 Multiplication:

 Public class Test03 {    publicstaticvoid  main (string[] args) {        // 99 multiplication Table        int i;         int J;          for (i = 1;i<=9;i++) {            for (j = 1;j<=i;j++) {                System.out.print (J+ "*" +i+ " = "+i*j+" \ T ");            }            System.out.println ();     }}}

Operation Result:

1*1=1
1*2=22*2=4
1*3=32*3=63*3=9
1*4=42*4=83*4=124*4=16
1*5=52*5=103*5=154*5=205*5=25
1*6=62*6=123*6=184*6=245*6=306*6=36
1*7=72*7=143*7=214*7=285*7=356*7=427*7=49
1*8=82*8=163*8=244*8=325*8=406*8=487*8=568*8=64
1*9=92*9=183*9=274*9=365*9=456*9=547*9=638*9=729*9=81

Java Program Structure