shortcircuit.java

来自「《Thinking in Java 4th Edition》 Source Co」· Java 代码 · 共 33 行

//: operators/ShortCircuit.java
// Demonstrates short-circuiting behavior
// with logical operators.
import static net.mindview.util.Print.*;

public class ShortCircuit {
  static boolean test1(int val) {
    print("test1(" + val + ")");
    print("result: " + (val < 1));
    return val < 1;
  }
  static boolean test2(int val) {
    print("test2(" + val + ")");
    print("result: " + (val < 2));
    return val < 2;
  }
  static boolean test3(int val) {
    print("test3(" + val + ")");
    print("result: " + (val < 3));
    return val < 3;
  }
  public static void main(String[] args) {
    boolean b = test1(0) && test2(2) && test3(2);
    print("expression is " + b);
  }
} /* Output:
test1(0)
result: true
test2(2)
result: false
expression is false
*///:~