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請撰寫一個 Java 式，執行後在畫面上顯示
 1 * 1 = 1
 1 * 2 = 2
 1 * 3 = 3
 ...
 2 * 1 = 2
 ...
 9 * 8 = 72
 9 * 9 = 81

解答：

public class JavaApplication {

public static void main(String args[]) {
for (int i = 1; i <= 9; i++) {
for (int j = 1; j <= 9; j++) {
System.out.println( i + " * " + j + " = " + (i * j));
}
}
}
}