JAVA第二次作业

1.

public class mer {

	public static void main(String[] args) {
		int a=5;
		int b=6;
		int c;
		
		c=a;
		a=b;
		b=c;
		System.out.println("a="+a+"  b="+b);

	}

}

　　

2.

public class mer {

	public static void main(String[] args) {
		int a=927;
		int ge=a%10;
		int shi=a/10%10;
		int bai=a/100;
		int sum=ge+shi+bai;
		System.out.println(sum);
	}

}

　　

3.

public class mer {

	public static void main(String[] args) {
		int f=50;
		int c=(f-32)*5/9;
		System.out.println(c);
	}

}

　　

4.

public class mer {

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

}