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Conditional Operator

  • It is ternary operator.
  • <Operand1> ? <Operand2> : <Operand3>
  • Operand1 must be of boolean type.
  • If Operand1 is true then Operand2 will be returned otherwise Operand3 will be returned.

Lab155.java​

class Lab155 {

  public static void main(String[] args) {
    int a = true ? 10 : 20;
    int b = false ? 10 : 20;

    System.out.println(a);
    System.out.println(b);
  }
}

Lab156.java​

class Lab156 {

  public static void main(String[] args) {
    int a = 20 > 10 ? 10 : 20.0;
    double d = 20 > 10 ? 10 : 20.0;
    int x = 10 > 20 ? 10 : "TWENTY";
    String str = 10 > 20 ? 10 : "TWENTY";
  }
}

Lab157.java​

class Lab157 {

  public static void main(String[] args) {
    Object obj = 10 > 20 ? 10 : "TWENTY";

    System.out.println(obj);
  }
}

Lab158.java​

class Lab158 {

  public static void main(String[] args) {
    int a = 10;
    int b = 20;

    int max = a > b ? a : b;
    System.out.println(max);

    int min = a < b ? a : b;
    System.out.println(min);
  }
}

Lab159.java​

class Lab159 {

  public static void main(String[] args) {
    int a = 10;
    int b = 23;
    int c = 12;

    int max = (a > b) ? ((a > c) ? a : c) : ((b > c) ? b : c);

    System.out.println(max);
  }
}