漫漫Java学习路,第一天

package cn.tedu.hello;

//HelloWorld案例
public class HelloWorld {
	
	public static void main(String[] args) {
	
		System.out.println( "欢迎来到Java世界,可爱的程序猿们" );
		System.out.println( "HelloWorld" );
		
	}
}

 代码测试练习

package cn.tedu.hello_1;

public class HelloWorld{
	public static void main(String[] ages) {
		System.out.println(Byte.MIN_VALUE);
		System.out.println(Byte.MAX_VALUE);
		System.out.println(Short.MIN_VALUE);
		System.out.println(Short.MAX_VALUE);
		System.out.println(Integer.MIN_VALUE);
		System.out.println(Integer.MAX_VALUE);
		System.out.println(Long.MIN_VALUE);
		System.out.println(Long.MAX_VALUE);
		System.out.println(Float.MIN_VALUE);
		System.out.println(Float.MAX_VALUE);
		System.out.println(Double.MIN_VALUE);
		System.out.println(Double.MAX_VALUE);
		System.out.println((int)Character.MIN_VALUE);
		System.out.println((int)Character.MAX_VALUE);
		System.out.println(Boolean.FALSE);
		System.out.println(Boolean.TRUE);
	}
}