有不懂的問題我會在這個帖子裡留言。5. 4.output 的輸出是什麼 ？3.output 的 public static void main(String[] args){ for1 : for(int i = 0; i< 10; i++){ for (int j = 0; j< 10; j++){ if ( i+ j > 10 ) break for1; } System.out.println( "hello"); } } 輸出是什麼 ？ 2.結論？ 1、它會顯示什麼？ class A{ A() { print(); } void print() { System.out.println("A"); } } class B extends A{ int i = 4; public static void main(String[] args){ A a = new B(); a.print(); } void print() { System.out.println(i); } }class A { public void m(Number n) { n = 5 / 3; System.out.println("class A, method m : " + n); } } class B extends A { public void m(Double d) { d = d / 3; System.out.println("class B, method m : " + d); } } public class MainClass { public static void main(String args[]) { A a = new B(); a.m(5.0); } } int []a = {5,5}; int b = 1; a[b] = b = 0; System.out.println(Arrays.toString(a)); class A { public void m(int k) { System.out.println("class A, method m : " + ++k); } } class B extends A { public int m(int k) { System.out.println("class B, method m : " + k++); return k; } } public class MainClass { public static void main(String args[]) { A a = new B(); a.m(34); } }
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