动手动脑
Posted sonofdemon
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1,
import javax.swing.JOptionPane; public class RandomInt { public static void main( String args[] ) { int value; String output = ""; for ( int i = 1; i <= 1000; i++ ) { value = 1 + (int) ( Math.random() * 6 ); output += value + " "; if ( i % 5 == 0 ) output += " "; } JOptionPane.showMessageDialog( null, output, "20 Random Numbers from 1 to 6", JOptionPane.INFORMATION_MESSAGE ); System.exit( 0 ); } }
2,
public class MethodOverload { public static void main(String[] args) { System.out.println("The square of integer 7 is " + square(7)); System.out.println(" The square of double 7.5 is " + square(7.5)); } public static int square(int x) { return x * x; } public static double square(double y) { return y * y; } }
方法重载
3,
System.out.println()
可以输出任意形式
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