constanttest.java

来自「java的书上例子」· Java 代码 · 共 38 行

/** 一个简单的应用程序，用来测试Java中几个特殊常量的值 */

/** 类ConstantTest */
public  class  ConstantTest{

	/** main()方法 */
  	public  static  void  main(String  args[]){
    	System.out.println("Integer.MAX_VALUE ="+ Integer.MAX_VALUE);
     	 //输出最大的int型值
    	System.out.println("Integer.MIN_VALUE ="+ Integer.MIN_VALUE);
     	 //输出最小的int型值
    	System.out.println("Long.MAX_VALUE ="+ Long.MAX_VALUE);
     	 //输出最大的long型值
    	System.out.println("Long.MIN_VALUE ="+Long.MIN_VALUE);
     	 //输出最小的long型值
    	System.out.println("Float.MAX_VALUE ="+ Float.MAX_VALUE);
     	 //输出最大的float型值
    	System.out.println("Float.MIN_VALUE ="+ Float.MIN_VALUE);
     	 //输出最小的float型值
    	System.out.println("Double.MAX_VALUE ="+ Double.MAX_VALUE);
     	 //输出最大的double型值
    	System.out.println("Double.MIN_VALUE ="+ Double.MIN_VALUE);
     	 //输出最小的double型值
        System.out.println("Float.POSITIVE_INFINITY ="+ Float.POSITIVE_INFINITY);
          //输出float型正无穷大
        System.out.println("Float.NEGATIVE_INFINITY ="+ Float.NEGATIVE_INFINITY);
          //输出float型负无穷大
        System.out.println("Double.POSITIVE_INFINITY ="	+ Double.POSITIVE_INFINITY);
          //输出double型正无穷大
        System.out.println("Double.NEGATIVE_INFINITY ="	+ Double.NEGATIVE_INFINITY);
          //输出double型负无穷大
        System.out.println("Float.NaN ="+ Float.NaN);
          //输出float型0/0
    	System.out.println("Double.NaN ="+ Double.NaN);
    	  //输出double型0/0
	}
}