System.out.println(c=(a==b?a/b:b%a));谁详细的解释下：各代表什么?

system.out.println system.out.println是什么意思啊. class A{ public A(){ System.out.println( String a); } }class B extends A{public B(){System.out.println(String b);}}class C extends B{public C(){System.out.println(String c);}}public class ConstructorTest{ public static void main(Stringargs[]){C java 中System.out.println()是什么意思? System.out.println(4 | 3) 结果是多少? System.out.println(Max+ +Min）是什么意思 if 1991 System.out.println (Child);elseSystem.out.println (everything is just beginning);end求翻译 double c = 0.1+0.2; System.out.println(c); 为什么c>0.请高手解释具体的计算原理. Math.round?大侠们帮忙.public class Test {/*** @param args*/public static void main(String[] args) {System.out.println(Math.round(-11.5));System.out.println(Math.round(-12.4));System.out.println(Math.round(-12.5));System.out.println(Math.round(-1 java 中 System.out.println( sdfsdf  sdfs );  是什么意思? System.out.println(x=+x+,y=+y); System.out.println(s1 = + s1); 为什么要这么写? System.out.println(x+ +y);括号里德X+是什么意思 int a = 8,b = 9; if (a = b){ System.out.println(true); }else{ System.out.println(false); } int m = 1; int n = 2; double y = 2.0; System.out.println(m + n); //3 System.out.println(m - n); //-1int m = 1;int n = 2;double y = 2.0;System.out.println(m + n); //3System.out.println(m - n); //-1System.out.println(m * n); //2System.out.println(m / n public class Ex3{int x;public static void main(String ar[])throws Exception{int y=0;Ex3 c=new Ex3();try{y=3/c.x;y=y+1;}catch(Exception e){System.out.println(errors occur!);System.out.println(getMessage=+e.getMessage());System.out.println(toStrin class C { public static void test(String s) { if(s == null | s.length() == 0) { System.out.println(class C {public static void test(String s) {if(s == null | s.length() == 0) {System.out.println(“String is null”);} else {System.out.println(“Str int a=10,b=20,c； c=a a=b b=c system out.println (a=+a+,b=+b)