関連ワード:  java program to input a number    java program to enter a number    java program to read a number    write a java program to input a number and print its factorial    java program to input two numbers and add them    java program to input 10 numbers in an array    write a java program to enter a number and print its reverse    write a java program to enter a number and print it in words    java program to read two numbers    write a java program to input two numbers