Conditional Statements - Java

Conditional Statements

• If

  •   if (condition) {statement;}
    

• If Else

  •   if (condition) {statement;}
      else {statement;}
    

• If Else if Else

  •   if (condition) {statement;}
      else if (condition) {statement;}
      else {statement;}
    

• Switch => Expression can only be a Constant

  •   switch (val) {
        case 1:
          statement;
          break;
    
        case 2:
          statement;
          break;
    
        default:
          statement;
      }
    

• Break => Gets you out of current loop
  • break
• Continue => Skips to next Iteration
  • continue

Loops

• For

  •   for (int i = 0; i < 100; i++) {
        statement;
      }
    

  • Loop through an Array var1

      for (int var : var1) {
        statement;
      }
    

  • for (initialization; condition; updating) {}
  • All of the above 3 are optional, Also there can be multiple Variables in each
  • Flow
    • Goes Initialization
    • Check Condition, If True then go to Body
    • Goes to updating then again does previous step, This continues till Condition becomes false
• While
  • while (condition) {statement;}
• Do While

  •   do {statement;} while (condition);