Java学习的第三十六天

1.2.1

public class cjava {
public static void main(String[]args) {
    int a,b;
    a='A';
    b='B';
    System.out.println("a="+a+"b="+b);
}
}

 

 

 2.2

public class cjava {
public static void main(String[]args) {
    char a,b;
    a='a';
    b='b';
    a=(char)(a-32);
    b=(char)(b-32);
    System.out.println("a="+a+"b="+b);
}
}

 

 

2.3

 

 

public class cjava {
public static void main(String[]args) {
final int s=10;
int a,b;
a=10;
b=a*s;
System.out.println("b="+b);
}
}

 

 2.4

public class cjava {
public static void main(String[]args) {

double a;
int b;
a=9.2;
b=(int)a;
System.out.println("b="+b);
}
}

 

 

 2.5

public class cjava {
public static void main(String[]args) {
short a;
short b=-1;
a=b;
System.out.println("a="+a);
}
}

 

 2.无问题

3.明天继续写例题。