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  • java例

    例一:

    class DataDemo01{
    public static void main(String[] args){
    int num =999999999999999999999999;
    }
    }

    例二:

    class DataDemo02{
    public static void main(String[] args){
    int max =Integer.MAX_VALUE;
    System.out.println("整型的最大值:"+max);
    System.out.println("整型最大值 +1:"+(max+1));
    System.out.println("整型最大值 +2:"+(max+2));
    }

    }

    例三:

    public class DataDemo03{
    public static void main(String[] args){
    int max =Integer.MAX_VALUE;
    System.out.println("整型的最大值:"+max);
    System.out.println("整型最大值 +1:"+(max+1));
    System.out.println("整型最大值 +2:"+(max+2L));
    System.out.println("整型最大值 +2:"+((long)max+2));
    }
    }

    例四:

    public class DataDemo04{
    public static void main(String[] args){
    char ch1='a';
    char ch2=97;
    System.out.println("ch1 = "+ch1);
    System.out.println("ch2 = "+ch2);

    }
    }

    例五:

    public class DataDemo05{
    public static void main(String[] args){
    char ch1='"';
    char ch2='\';
    System.out.println("ch1 = "+ch1);
    System.out.println("ch2 = "+ch2);
    System.out.println(""Hello World"");
    }
    }

    例六:

    public class DataDemo06{
    public static void main(String[] args){
    float num=3.0f;
    System.out.println("两个小数相乘:"+num*num);
    }
    }

    例七:

    public class DataDemo07{
    public static void main(String[] args){
    boolean flag=true;
    System.out.println("flag = "+flag);
    }
    }

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  • 原文地址:https://www.cnblogs.com/hell/p/5247312.html
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