maxvariablesdemo.java

Java语言程序设计-源代码 和课程相对应的提供了一些用于学习理解的代码设计

public class MaxVariablesDemo {
    public static void main(String args[]) {
         // 整数类型
        byte largestByte = Byte.MAX_VALUE;
		byte leastByte = Byte.MIN_VALUE;
        short largestShort = Short.MAX_VALUE;
		short leastShort = Short.MIN_VALUE;
        int largestInteger = Integer.MAX_VALUE;
		int leastInteger = Integer.MIN_VALUE;
        long largestLong = Long.MAX_VALUE;
		long leastLong = Long.MIN_VALUE;
        // 实数类型
        float largestFloat = Float.MAX_VALUE;
		float leastFloat = Float.MIN_VALUE;
		double largestDouble = Double.MAX_VALUE;
		double leastDouble = Double.MIN_VALUE;
        // 其他简单类型
        char aChar = 'A';
        boolean aBoolean = true;
        // 全部显示
        System.out.println("The largest byte value is " + largestByte);
        System.out.println("The least byte value is " + leastByte);
        System.out.println("The largest short value is " + largestShort);
        System.out.println("The least short value is " + leastShort);
        System.out.println("The largest integer value is " + largestInteger);
        System.out.println("The least integer value is " + leastInteger);
        System.out.println("The largest long value is " + largestLong);
        System.out.println("The least long value is " + leastLong);
        System.out.println("The largest float value is " + largestFloat);
        System.out.println("The least float value is " + leastFloat);
        System.out.println("The largest double value is " + largestDouble);
        System.out.println("The least double value is " + leastDouble);
        if (Character.isUpperCase(aChar)) {
            System.out.println("The character " + aChar + " is upper case.");
        }
         else {
            System.out.println("The character " + aChar + " is lower case.");
        }
        System.out.println("The value of aBoolean is " + aBoolean);
    }
}