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Java Booleans

Boolean expression : returns a Boolean value(true o false)

Can use a comparision operator

Java if-else

“if”

• to specify a block of code to be executed

• if a specified condition is true

“else”

• if a same condition is false

“else if”

• new condition to test if the first false

short hand if-else(Ternary Operator)

variable = (condition) ? expressionTrue : expressionFalse

• why “ternary”?

  • because it consists of three operands

“switch”

• to specify many alternative blocks of code to be executed

Switch

switch(expression){     //evaluated once
case x:     //The value of expression is compared with the values of each case
  code block
  break;    //Java reaches a “break” keyword, it breaks out of the switch block, it ignores the execution of all the rest of the code in the switch block
case y:
  code block
  break;
default:    //if there is no case match, associated block of code is executed
  code block
}