numberconcealchangedemo.java

Eclipse程序设计经典教程+源代码 学习java的朋友可以看看

package conversion;

public class NumberConcealChangeDemo {

  public static void main(String[] args) {
    byte byte1 = 33;
    //byte类型自动转变为范围大的数字类型
    short short1 = byte1;
    int int1 = byte1;
    long long1 = byte1;
    float float1 = byte1;
    double double1 = byte1;
    System.out.println("byte1 = " + byte1);
    System.out.println("short1 = " + short1);
    System.out.println("int1 = " + int1);
    System.out.println("long1 = " + long1);
    System.out.println("float1 = " + float1);
    System.out.println("double1 = " + double1);
  }
}