let's study while loop with an example:
A simple example
OCAJP>cat test.java
class test{
public static void main(String...args) {
int m = 0, n = 4;
while(m < (n = 3)) {
m++;
n--;
System.out.println(m+","+n);
}
}
}
OCAJP>javac test.java
OCAJP>java test
1,2
2,2
3,2
A mixed example
OCAJP>cat test.java
class test{
public static void main(String...args) {
int i = 10;
boolean b = false;
while(b=-i++ < i -- ) {
i -= (i*=20%i++);
System.out.print(i+":");
if(i%2==0) i--;i=(b=i<10)?i--:i;
System.out.println(i+",");
}
switch(0) {
default: System.out.println(-0<0);
case 10: i = 1; System.out.print(-i++ < i--); i = -1; System.out.print(-i++ < i--); i = 0; System.out.println(-i++ < i--);
case 2: i = 5; System.out.println(i=i--); //5
case 3: i = 5; System.out.println(i - (i = 0)); //5
case -4: i = 10; i = i - (i = i * (20%i++)); //i won't change if i is even
System.out.println(i);
case 5: i = 9; i = i - (i = i * (20%i++)); System.out.println(i); //i = 9 - (9 * 2) = -9
}
}
}
OCAJP>javac test.java
OCAJP>java test
10:9,
-9:-9,
false
truefalsetrue
5
5
10
-9
